[Tarantool-patches] [PATCH 4/5] sql: replace control pragmas by SET

Konstantin Osipov kostja.osipov at gmail.com
Wed Nov 27 13:51:50 MSK 2019


Why is it not possible to make the settings system view updatable,
if you decided to go with adding such a view anyway?

Usually, if one allows SET statement, SET option_name (without 
"= new_value") prints the current setting. This does the job and
makes the "_vsettings" system view unnecessary.

Don't you think that having to use one piece of syntax to query a
value and entirely different piece to assign it is, ehm,
inconsistent, hard to learn & remember, and eventually hard to
use?

* imeevma at tarantool.org <imeevma at tarantool.org> [19/11/27 13:16]:


> This patch replaces the control pragmas with SET. List of replaced
> control pragmas and their SET settings:
> 	Control pragmas			SET parameters
> defer_foreign_keys		sql_defer_foreign_keys
> full_column_names		sql_full_column_names
> recursive_triggers		sql_recursive_triggers
> reverse_unordered_selects	sql_reverse_unordered_selects
> sql_compound_select_limit	sql_compound_select_limit
> sql_default_engine		sql_default_engine
> 
> Also, in debug build, these control pragmas are replaced by SET
> settings:
> 	Control pragmas			SET parameters
> parser_trace			sql_parser_trace
> select_trace			sql_select_trace
> sql_trace			sql_trace
> vdbe_addoptrace			sql_vdbe_addoptrace
> vdbe_debug			sql_vdbe_debug
> vdbe_eqp			sql_vdbe_eqp
> vdbe_listing			sql_vdbe_listing
> vdbe_trace			sql_vdbe_trace
> where_trace			sql_where_trace
> 
> Difference between SET and control pragma:
> 1) SET have more definite syntax:
> SET <setting name> = <setting value>;
> In PRAGMA, we could set the settings using these methods:
> PRAGMA <setting name> = <setting value>;
> PRAGMA <setting name>(<setting value>);
> 
> 2) SET allows only a specific type of value for each setting. In
> PRAGMA, we could use almost everything to set up any setting.
> Although the rules by which the settings were set in PRAGMA were
> pretty easy to understand.
> 
> 3) SET cannot display setting values. PRAGMA showed the setting
> values using the syntax "PRAGMA <setting name>;". With SET, we
> must use other means to get the current setting values. For
> session settings, we could use the sysview "_vsession_settings"
> to get these values. It is worth noting that all current SQL
> settings are session settings, with the exception of
> 'sql_reverse_unordered_selects'.
> 
> After this patch there will be no control pragmas.
> 
> Closes #4511
> Closes #4621
> 
> @TarantoolBot document
> Title: SQL SET statement
> 
> SQL SET statement is used to change SQL settings. To change the
> value of an SQL setting, use the following syntax:
> 
> SET <setting name> = <setting value>;
> 
> Currently available SQL settings:
> 'sql_defer_foreign_keys'
> 'sql_full_column_names'
> 'sql_recursive_triggers'
> 'sql_reverse_unordered_selects'
> 'sql_compound_select_limit'
> 'sql_default_engine'
> 
> In addition, SQL debugging settings can also be changed using this
> statement in debug build:
> 'sql_parser_trace'
> 'sql_select_trace'
> 'sql_trace'
> 'sql_vdbe_addoptrace'
> 'sql_vdbe_debug'
> 'sql_vdbe_eqp'
> 'sql_vdbe_listing'
> 'sql_vdbe_trace'
> 'sql_where_trace'
> 
> Example of usage:
> SET sql_full_column_names = true;
> SET sql_compound_select_limit = 10;
> SET sql_default_engine = 'memtx';
> ---
>  src/box/sql/build.c                                | 120 ++++++++++++
>  src/box/sql/parse.y                                |   8 +-
>  src/box/sql/pragma.c                               | 203 +--------------------
>  src/box/sql/pragma.h                               | 134 --------------
>  src/box/sql/sqlInt.h                               |  57 +++++-
>  src/box/sql/vdbe.c                                 |  25 +++
>  test/sql-tap/analyze4.test.lua                     |   4 +-
>  test/sql-tap/autoinc.test.lua                      |   2 +-
>  test/sql-tap/colname.test.lua                      |  16 +-
>  test/sql-tap/fkey2.test.lua                        |   4 +-
>  test/sql-tap/gh2548-select-compound-limit.test.lua |  18 +-
>  test/sql-tap/lua/sqltester.lua                     |   2 +-
>  test/sql-tap/misc1.test.lua                        |   2 +-
>  test/sql-tap/pragma.test.lua                       | 135 +-------------
>  test/sql-tap/select1.test.lua                      |  22 +--
>  test/sql-tap/tkt3731.test.lua                      |   2 +-
>  test/sql-tap/trigger2.test.lua                     |   2 +-
>  test/sql-tap/triggerC.test.lua                     |  51 +-----
>  test/sql-tap/update.test.lua                       |   1 -
>  test/sql-tap/whereA.test.lua                       |  24 +--
>  test/sql/check-clear-ephemeral.result              |   4 +-
>  test/sql/check-clear-ephemeral.test.lua            |   4 +-
>  test/sql/checks.result                             |   4 +-
>  test/sql/checks.test.lua                           |   4 +-
>  test/sql/clear.result                              |   4 +-
>  test/sql/clear.test.lua                            |   4 +-
>  test/sql/collation.result                          |   2 +-
>  test/sql/collation.test.lua                        |   2 +-
>  test/sql/ddl.result                                |   2 +-
>  test/sql/ddl.test.lua                              |   2 +-
>  test/sql/delete-multiple-idx.result                |   4 +-
>  test/sql/delete-multiple-idx.test.lua              |   4 +-
>  test/sql/delete.result                             |   4 +-
>  test/sql/delete.test.lua                           |   4 +-
>  test/sql/drop-index.result                         |   4 +-
>  test/sql/drop-index.test.lua                       |   4 +-
>  test/sql/drop-table.result                         |   4 +-
>  test/sql/drop-table.test.lua                       |   4 +-
>  test/sql/engine.result                             |   6 +-
>  test/sql/engine.test.lua                           |   6 +-
>  test/sql/errinj.result                             |   2 +-
>  test/sql/errinj.test.lua                           |   2 +-
>  test/sql/func-recreate.result                      |   2 +-
>  test/sql/func-recreate.test.lua                    |   2 +-
>  test/sql/gh-2362-select-access-rights.result       |   2 +-
>  test/sql/gh-2362-select-access-rights.test.lua     |   2 +-
>  test/sql/gh-2929-primary-key.result                |   2 +-
>  test/sql/gh-2929-primary-key.test.lua              |   2 +-
>  test/sql/gh-2981-check-autoinc.result              |   2 +-
>  test/sql/gh-2981-check-autoinc.test.lua            |   2 +-
>  test/sql/gh-3199-no-mem-leaks.result               |   2 +-
>  test/sql/gh-3199-no-mem-leaks.test.lua             |   2 +-
>  test/sql/gh-3613-idx-alter-update-2.result         |   2 +-
>  test/sql/gh-3613-idx-alter-update-2.test.lua       |   2 +-
>  test/sql/gh-3613-idx-alter-update.result           |   2 +-
>  test/sql/gh-3613-idx-alter-update.test.lua         |   2 +-
>  test/sql/gh-3888-values-blob-assert.result         |   2 +-
>  test/sql/gh-3888-values-blob-assert.test.lua       |   2 +-
>  test/sql/gh2141-delete-trigger-drop-table.result   |   2 +-
>  test/sql/gh2141-delete-trigger-drop-table.test.lua |   2 +-
>  test/sql/gh2251-multiple-update.result             |   2 +-
>  test/sql/gh2251-multiple-update.test.lua           |   2 +-
>  test/sql/gh2483-remote-persistency-check.result    |   2 +-
>  test/sql/gh2483-remote-persistency-check.test.lua  |   2 +-
>  .../gh2808-inline-unique-persistency-check.result  |   2 +-
>  ...gh2808-inline-unique-persistency-check.test.lua |   2 +-
>  test/sql/icu-upper-lower.result                    |   2 +-
>  test/sql/icu-upper-lower.test.lua                  |   2 +-
>  test/sql/insert-unique.result                      |   4 +-
>  test/sql/insert-unique.test.lua                    |   4 +-
>  test/sql/integer-overflow.result                   |   2 +-
>  test/sql/integer-overflow.test.lua                 |   2 +-
>  test/sql/iproto.result                             |   2 +-
>  test/sql/iproto.test.lua                           |   2 +-
>  test/sql/max-on-index.result                       |   4 +-
>  test/sql/max-on-index.test.lua                     |   4 +-
>  test/sql/message-func-indexes.result               |   2 +-
>  test/sql/message-func-indexes.test.lua             |   2 +-
>  test/sql/misc.result                               |   2 +-
>  test/sql/misc.test.lua                             |   2 +-
>  test/sql/no-pk-space.result                        |   2 +-
>  test/sql/no-pk-space.test.lua                      |   2 +-
>  test/sql/on-conflict.result                        |   2 +-
>  test/sql/on-conflict.test.lua                      |   2 +-
>  test/sql/persistency.result                        |   2 +-
>  test/sql/persistency.test.lua                      |   2 +-
>  test/sql/row-count.result                          |  10 +-
>  test/sql/row-count.test.lua                        |   4 +-
>  test/sql/savepoints.result                         |   2 +-
>  test/sql/savepoints.test.lua                       |   2 +-
>  test/sql/select-null.result                        |   4 +-
>  test/sql/select-null.test.lua                      |   4 +-
>  test/sql/sql-debug.result                          | 142 ++++++++++----
>  test/sql/sql-debug.test.lua                        |  33 ++--
>  test/sql/sql-statN-index-drop.result               |   2 +-
>  test/sql/sql-statN-index-drop.test.lua             |   2 +-
>  test/sql/tokenizer.result                          |   2 +-
>  test/sql/tokenizer.test.lua                        |   2 +-
>  test/sql/transition.result                         |   2 +-
>  test/sql/transition.test.lua                       |   2 +-
>  test/sql/transitive-transactions.result            |   8 +-
>  test/sql/transitive-transactions.test.lua          |   8 +-
>  test/sql/triggers.result                           |  14 +-
>  test/sql/triggers.test.lua                         |  14 +-
>  test/sql/update-with-nested-select.result          |   4 +-
>  test/sql/update-with-nested-select.test.lua        |   4 +-
>  test/sql/upgrade.result                            |   2 +-
>  test/sql/upgrade.test.lua                          |   2 +-
>  test/sql/view.result                               |   2 +-
>  test/sql/view.test.lua                             |   2 +-
>  test/sql/view_delayed_wal.result                   |   2 +-
>  test/sql/view_delayed_wal.test.lua                 |   2 +-
>  test/sql/vinyl-opts.result                         |   2 +-
>  test/sql/vinyl-opts.test.lua                       |   2 +-
>  114 files changed, 531 insertions(+), 758 deletions(-)
> 
> diff --git a/src/box/sql/build.c b/src/box/sql/build.c
> index ce87b88..210d392 100644
> --- a/src/box/sql/build.c
> +++ b/src/box/sql/build.c
> @@ -3275,6 +3275,12 @@ enum {
>  	SQL_SESSION_OPTION_max,
>  };
>  
> +/**  Identifiers of all SQL global options that can be set. */
> +enum {
> +	SQL_GLOBAL_OPTION_COMPOUND_SELECT_LIMIT = 0,
> +	SQL_GLOBAL_OPTION_max,
> +};
> +
>  /**
>   * A local structure that allows to establish a connection between
>   * the name of the parameter, its field type and mask, if it have
> @@ -3329,6 +3335,15 @@ static struct sql_option_metadata sql_session_opts[] = {
>  #endif
>  };
>  
> +/**
> + * Variable that contains names of the SQL global options, their
> + * field types and mask if they have one or 0 if don't have.
> + */
> +static struct sql_option_metadata sql_global_opts[] = {
> +	/** SQL_GLOBAL_OPTION_COMPOUND_SELECT_LIMIT */
> +	{"sql_compound_select_limit", FIELD_TYPE_INTEGER, 0},
> +};
> +
>  uint32_t
>  sql_session_opt_id_max()
>  {
> @@ -3382,3 +3397,108 @@ sql_session_opt_tuple(struct tuple_format *format, int option_id,
>  	*result = tuple;
>  	return 0;
>  }
> +
> +int
> +sql_set_boolean_option(int id, enum sql_setting_type type, bool value)
> +{
> +	assert(type == SQL_SESSION_SETTING);
> +	(void)type;
> +	struct session *session = current_session();
> +	struct sql_option_metadata *option = &sql_session_opts[id];
> +	assert(option->field_type == FIELD_TYPE_BOOLEAN);
> +	if (value)
> +		session->sql_flags |= option->mask;
> +	else
> +		session->sql_flags &= ~option->mask;
> +#ifndef NDEBUG
> +	if (id == SQL_SESSION_OPTION_PARSER_TRACE) {
> +		if (value)
> +			sqlParserTrace(stdout, "parser: ");
> +		else
> +			sqlParserTrace(NULL, NULL);
> +	}
> +#endif
> +	return 0;
> +}
> +
> +int
> +sql_set_string_option(int id, enum sql_setting_type type, const char *value)
> +{
> +	assert(type == SQL_SESSION_SETTING);
> +	(void)type;
> +	assert(sql_session_opts[id].field_type = FIELD_TYPE_STRING);
> +	assert(id == SQL_SESSION_OPTION_DEFAULT_ENGINE);
> +	(void)id;
> +	enum sql_storage_engine engine = STR2ENUM(sql_storage_engine, value);
> +	if (engine == sql_storage_engine_MAX) {
> +		diag_set(ClientError, ER_NO_SUCH_ENGINE, value);
> +		return -1;
> +	}
> +	current_session()->sql_default_engine = engine;
> +	return 0;
> +}
> +
> +int
> +sql_set_integer_option(int id, enum sql_setting_type type, int value)
> +{
> +	assert(type == SQL_GLOBAL_SETTING);
> +	(void)type;
> +	assert(sql_global_opts[id].field_type = FIELD_TYPE_INTEGER);
> +	assert(id == SQL_GLOBAL_OPTION_COMPOUND_SELECT_LIMIT);
> +	(void)id;
> +	int rc = sql_limit(sql_get(), SQL_LIMIT_COMPOUND_SELECT, value);
> +	assert(rc >= 0);
> +	return rc < 0 ? -1 : 0;
> +}
> +
> +void
> +sql_set_settings(struct Parse *parse_context, struct Token *name,
> +		 struct Expr *value)
> +{
> +	int opt_id;
> +	struct Vdbe *vdbe = sqlGetVdbe(parse_context);
> +	char *name_str = sql_name_from_token(sql_get(), name);
> +	if (name_str == NULL) {
> +		parse_context->is_aborted = true;
> +		return;
> +	}
> +	int value_reg = ++parse_context->nMem;
> +	sqlExprCode(parse_context, value, value_reg);
> +	/* Try to find the option among the session options. */
> +	for (opt_id = 0; opt_id < SQL_SESSION_OPTION_max; ++opt_id) {
> +		if (strcasecmp(sql_session_opts[opt_id].name, name_str) == 0) {
> +			struct sql_option_metadata *opt =
> +				&sql_session_opts[opt_id];
> +			if (value->type != opt->field_type) {
> +				diag_set(ClientError, ER_INCONSISTENT_TYPES,
> +					 field_type_strs[opt->field_type],
> +					 field_type_strs[value->type]);
> +				parse_context->is_aborted = true;
> +				return;
> +			}
> +			sqlVdbeAddOp3(vdbe, OP_Set, SQL_SESSION_SETTING, opt_id,
> +				      value_reg);
> +			return;
> +		}
> +	}
> +	/* Try to find the option among the global options. */
> +	for (opt_id = 0; opt_id < SQL_GLOBAL_OPTION_max; ++opt_id) {
> +		if (strcasecmp(sql_global_opts[opt_id].name, name_str) == 0) {
> +			struct sql_option_metadata *opt =
> +				&sql_global_opts[opt_id];
> +			if (value->type != opt->field_type) {
> +				diag_set(ClientError, ER_INCONSISTENT_TYPES,
> +					 field_type_strs[opt->field_type],
> +					 field_type_strs[value->type]);
> +				parse_context->is_aborted = true;
> +				return;
> +			}
> +			sqlVdbeAddOp3(vdbe, OP_Set, SQL_GLOBAL_SETTING, opt_id,
> +				      value_reg);
> +			return;
> +		}
> +	}
> +	diag_set(ClientError, ER_SQL_PARSER_GENERIC, "Setting is not found");
> +	parse_context->is_aborted = true;
> +	return;
> +}
> diff --git a/src/box/sql/parse.y b/src/box/sql/parse.y
> index 1d0c95f..9f8118e 100644
> --- a/src/box/sql/parse.y
> +++ b/src/box/sql/parse.y
> @@ -1539,6 +1539,11 @@ cmd ::= DROP INDEX ifexists(E) nm(X) ON fullname(Y).   {
>    sql_drop_index(pParse);
>  }
>  
> +///////////////////////////// The SET command ////////////////////////////////
> +cmd ::= SET nm(X) EQ term(Y).  {
> +    sql_set_settings(pParse,&X,Y.pExpr);
> +}
> +
>  ///////////////////////////// The PRAGMA command /////////////////////////////
>  //
>  cmd ::= PRAGMA nm(X).                        {
> @@ -1559,9 +1564,6 @@ cmd ::= PRAGMA nm(X) LP minus_num(Y) RP.     {
>  cmd ::= PRAGMA nm(X) LP nm(Z) DOT nm(Y) RP.  {
>      sqlPragma(pParse,&X,&Y,&Z,0);
>  }
> -cmd ::= PRAGMA .                            {
> -    sqlPragma(pParse, 0,0,0,0);
> -}
>  
>  nmnum(A) ::= plus_num(A).
>  nmnum(A) ::= STRING(A).
> diff --git a/src/box/sql/pragma.c b/src/box/sql/pragma.c
> index 92bcf4e..0eaa2ca 100644
> --- a/src/box/sql/pragma.c
> +++ b/src/box/sql/pragma.c
> @@ -62,56 +62,6 @@
>  #include "pragma.h"
>  #include "tarantoolInt.h"
>  
> -/*
> - * Interpret the given string as a safety level.  Return 0 for OFF,
> - * 1 for ON or NORMAL, 2 for FULL, and 3 for EXTRA.  Return 1 for an empty or
> - * unrecognized string argument.  The FULL and EXTRA option is disallowed
> - * if the omitFull parameter it 1.
> - *
> - * Note that the values returned are one less that the values that
> - * should be passed into sqlBtreeSetSafetyLevel().  The is done
> - * to support legacy SQL code.  The safety level used to be boolean
> - * and older scripts may have used numbers 0 for OFF and 1 for ON.
> - */
> -static u8
> -getSafetyLevel(const char *z, int omitFull, u8 dflt)
> -{
> -	/* 123456789 123456789 123 */
> -	static const char zText[] = "onoffalseyestruextrafull";
> -	static const u8 iOffset[] = { 0, 1, 2, 4, 9, 12, 15, 20 };
> -	static const u8 iLength[] = { 2, 2, 3, 5, 3, 4, 5, 4 };
> -	static const u8 iValue[] = { 1, 0, 0, 0, 1, 1, 3, 2 };
> -	/* on no off false yes true extra full */
> -	int i, n;
> -	if (sqlIsdigit(*z)) {
> -		return (u8) sqlAtoi(z);
> -	}
> -	n = sqlStrlen30(z);
> -	for (i = 0; i < ArraySize(iLength); i++) {
> -		if (iLength[i] == n
> -		    && sqlStrNICmp(&zText[iOffset[i]], z, n) == 0
> -		    && (!omitFull || iValue[i] <= 1)
> -		    ) {
> -			return iValue[i];
> -		}
> -	}
> -	return dflt;
> -}
> -
> -/*
> - * Interpret the given string as a boolean value.
> - */
> -u8
> -sqlGetBoolean(const char *z, u8 dflt)
> -{
> -	return getSafetyLevel(z, 1, dflt) != 0;
> -}
> -
> -/* The sqlGetBoolean() function is used by other modules but the
> - * remainder of this file is specific to PRAGMA processing.  So omit
> - * the rest of the file if PRAGMAs are omitted from the build.
> - */
> -
>  /** Set result column names and types for a pragma. */
>  static void
>  vdbe_set_pragma_result_columns(struct Vdbe *v, const struct PragmaName *pragma)
> @@ -128,17 +78,6 @@ vdbe_set_pragma_result_columns(struct Vdbe *v, const struct PragmaName *pragma)
>  }
>  
>  /*
> - * Generate code to return a single integer value.
> - */
> -static void
> -returnSingleInt(Vdbe * v, i64 value)
> -{
> -	sqlVdbeAddOp4Dup8(v, OP_Int64, 0, 1, 0, (const u8 *)&value,
> -			  value < 0 ? P4_INT64 : P4_UINT64);
> -	sqlVdbeAddOp2(v, OP_ResultRow, 1, 1);
> -}
> -
> -/*
>   * Locate a pragma in the aPragmaName[] array.
>   */
>  static const PragmaName *
> @@ -161,53 +100,6 @@ pragmaLocate(const char *zName)
>  	return lwr > upr ? 0 : &aPragmaName[mid];
>  }
>  
> -static void
> -vdbe_emit_pragma_status(struct Parse *parse)
> -{
> -	struct Vdbe *v = sqlGetVdbe(parse);
> -	struct session *user_session = current_session();
> -
> -	sqlVdbeSetNumCols(v, 2);
> -	sqlVdbeSetColName(v, 0, COLNAME_NAME, "pragma_name", SQL_STATIC);
> -	sqlVdbeSetColName(v, 0, COLNAME_DECLTYPE, "text", SQL_STATIC);
> -	sqlVdbeSetColName(v, 1, COLNAME_NAME, "pragma_value", SQL_STATIC);
> -	sqlVdbeSetColName(v, 1, COLNAME_DECLTYPE, "integer", SQL_STATIC);
> -
> -	parse->nMem = 2;
> -	for (int i = 0; i < ArraySize(aPragmaName); ++i) {
> -		if (aPragmaName[i].ePragTyp != PragTyp_FLAG)
> -			continue;
> -		sqlVdbeAddOp4(v, OP_String8, 0, 1, 0, aPragmaName[i].zName, 0);
> -		int val = (user_session->sql_flags & aPragmaName[i].iArg) != 0;
> -		sqlVdbeAddOp2(v, OP_Integer, val, 2);
> -		sqlVdbeAddOp2(v, OP_ResultRow, 1, 2);
> -	}
> -}
> -
> -/**
> - * Set tarantool backend default engine for SQL interface.
> - * @param engine_name to set default.
> - * @retval -1 on error.
> - * @retval 0 on success.
> - */
> -static int
> -sql_default_engine_set(const char *engine_name)
> -{
> -	if (engine_name == NULL) {
> -		diag_set(ClientError, ER_ILLEGAL_PARAMS,
> -			 "'sql_default_engine' was not specified");
> -		return -1;
> -	}
> -	enum sql_storage_engine engine =
> -		STR2ENUM(sql_storage_engine, engine_name);
> -	if (engine == sql_storage_engine_MAX) {
> -		diag_set(ClientError, ER_NO_SUCH_ENGINE, engine_name);
> -		return -1;
> -	}
> -	current_session()->sql_default_engine = engine;
> -	return 0;
> -}
> -
>  /**
>   * This function handles PRAGMA TABLE_INFO(<table>).
>   *
> @@ -373,22 +265,6 @@ sql_pragma_index_list(struct Parse *parse, const char *tbl_name)
>  }
>  
>  /*
> - * @brief Check whether the specified token is a string or ID.
> - * @param token - token to be examined
> - * @return true - if the token value is enclosed into quotes (')
> - * @return false in other cases
> - * The empty value is considered to be a string.
> - */
> -static bool
> -token_is_string(const struct Token* token)
> -{
> -	if (!token || token->n == 0)
> -		return true;
> -	return token->n >= 2 && token->z[0] == '\'' &&
> -	       token->z[token->n - 1] == '\'';
> -}
> -
> -/*
>   * Process a pragma statement.
>   *
>   * Pragmas are of this form:
> @@ -416,17 +292,12 @@ sqlPragma(Parse * pParse, Token * pId,	/* First part of [schema.]id field */
>  	sql *db = pParse->db;	/* The database connection */
>  	Vdbe *v = sqlGetVdbe(pParse);	/* Prepared statement */
>  	const PragmaName *pPragma;	/* The pragma */
> -	struct session *user_session = current_session();
>  
>  	if (v == 0)
>  		return;
>  	sqlVdbeRunOnlyOnce(v);
>  	pParse->nMem = 2;
>  
> -	if (pId == NULL) {
> -		vdbe_emit_pragma_status(pParse);
> -		return;
> -	}
>  	zLeft = sql_name_from_token(db, pId);
>  	if (zLeft == NULL) {
>  		pParse->is_aborted = true;
> @@ -456,38 +327,10 @@ sqlPragma(Parse * pParse, Token * pId,	/* First part of [schema.]id field */
>  		goto pragma_out;
>  	}
>  	/* Register the result column names for pragmas that return results */
> -	if ((pPragma->mPragFlg & PragFlg_NoColumns) == 0 &&
> -	    ((pPragma->mPragFlg & PragFlg_NoColumns1) == 0 || zRight == NULL))
> -		vdbe_set_pragma_result_columns(v, pPragma);
> +	vdbe_set_pragma_result_columns(v, pPragma);
>  	/* Jump to the appropriate pragma handler */
>  	switch (pPragma->ePragTyp) {
>  
> -	case PragTyp_FLAG:{
> -		if (zRight == NULL) {
> -			vdbe_set_pragma_result_columns(v, pPragma);
> -			returnSingleInt(v, (user_session->sql_flags &
> -					    pPragma->iArg) != 0);
> -		} else {
> -			/* Mask of bits to set or clear. */
> -			int mask = pPragma->iArg;
> -			bool is_pragma_set = sqlGetBoolean(zRight, 0);
> -
> -			if (is_pragma_set)
> -				user_session->sql_flags |= mask;
> -			else
> -				user_session->sql_flags &= ~mask;
> -#if defined(SQL_DEBUG)
> -			if (mask == PARSER_TRACE_FLAG) {
> -				if (is_pragma_set)
> -					sqlParserTrace(stdout, "parser: ");
> -				else
> -					sqlParserTrace(0, 0);
> -			}
> -#endif
> -		}
> -		break;
> -	}
> -
>  	case PragTyp_TABLE_INFO:
>  		sql_pragma_table_info(pParse, zRight);
>  		break;
> @@ -565,54 +408,10 @@ sqlPragma(Parse * pParse, Token * pId,	/* First part of [schema.]id field */
>  		break;
>  	}
>  
> -	case PragTyp_DEFAULT_ENGINE: {
> -		if (!token_is_string(pValue)) {
> -			diag_set(ClientError, ER_ILLEGAL_PARAMS,
> -				 "string value is expected");
> -			pParse->is_aborted = true;
> -			goto pragma_out;
> -		}
> -		if (zRight == NULL) {
> -			const char *engine_name =
> -				sql_storage_engine_strs[current_session()->
> -							sql_default_engine];
> -			sqlVdbeLoadString(v, 1, engine_name);
> -			sqlVdbeAddOp2(v, OP_ResultRow, 1, 1);
> -		} else {
> -			if (sql_default_engine_set(zRight) != 0) {
> -				pParse->is_aborted = true;
> -				goto pragma_out;
> -			}
> -			sqlVdbeAddOp0(v, OP_Expire);
> -		}
> -		break;
> -	}
> -
> -	case PragTyp_COMPOUND_SELECT_LIMIT: {
> -		if (zRight != NULL) {
> -			sql_limit(db, SQL_LIMIT_COMPOUND_SELECT,
> -				      sqlAtoi(zRight));
> -		}
> -		int retval =
> -			sql_limit(db, SQL_LIMIT_COMPOUND_SELECT, -1);
> -		returnSingleInt(v, retval);
> -		break;
> -	}
> -
>  	default:
>  		unreachable();
>  	}			/* End of the PRAGMA switch */
>  
> -	/* The following block is a no-op unless SQL_DEBUG is
> -	 * defined. Its only * purpose is to execute assert()
> -	 * statements to verify that if the * PragFlg_NoColumns1 flag
> -	 * is set and the caller specified an argument * to the PRAGMA,
> -	 * the implementation has not added any OP_ResultRow *
> -	 * instructions to the VM.
> -	 */
> -	if ((pPragma->mPragFlg & PragFlg_NoColumns1) && zRight) {
> -		sqlVdbeVerifyNoResultRow(v);
> -	}
>   pragma_out:
>  	sqlDbFree(db, zLeft);
>  	sqlDbFree(db, zRight);
> diff --git a/src/box/sql/pragma.h b/src/box/sql/pragma.h
> index f337f0b..6c66d97 100644
> --- a/src/box/sql/pragma.h
> +++ b/src/box/sql/pragma.h
> @@ -6,19 +6,14 @@
>  
>  /* The various pragma types */
>  #define PragTyp_COLLATION_LIST                 3
> -#define PragTyp_FLAG                           5
>  #define PragTyp_FOREIGN_KEY_LIST               9
>  #define PragTyp_INDEX_INFO                    10
>  #define PragTyp_INDEX_LIST                    11
>  #define PragTyp_STATS                         15
>  #define PragTyp_TABLE_INFO                    17
> -#define PragTyp_DEFAULT_ENGINE                25
> -#define PragTyp_COMPOUND_SELECT_LIMIT         26
>  
>  /* Property flags associated with various pragma. */
>  #define PragFlg_NeedSchema 0x01	/* Force schema load before running */
> -#define PragFlg_NoColumns  0x02	/* OP_ResultRow called with zero columns */
> -#define PragFlg_NoColumns1 0x04	/* zero columns if RHS argument is present */
>  #define PragFlg_Result0    0x10	/* Acts as query when no argument */
>  #define PragFlg_Result1    0x20	/* Acts as query when has one argument */
>  #define PragFlg_SchemaOpt  0x40	/* Schema restricts name search if present */
> @@ -93,51 +88,6 @@ static const char *const pragCName[] = {
>  	/*  55 */ "text",
>  	/*  56 */ "match",
>  	/*  57 */ "text",
> -	/* Used by: defer_foreign_keys */
> -	/*  58 */ "defer_foreign_keys",
> -	/*  59 */ "integer",
> -	/* Used by: full_column_names */
> -	/*  60 */ "full_column_names",
> -	/*  61 */ "integer",
> -	/* Used by: parser_trace */
> -	/*  62 */ "parser_trace",
> -	/*  63 */ "integer",
> -	/* Used by: recursive_triggers */
> -	/*  64 */ "recursive_triggers",
> -	/*  65 */ "integer",
> -	/* Used by: reverse_unordered_selects */
> -	/*  66 */ "reverse_unordered_selects",
> -	/*  67 */ "integer",
> -	/* Used by: select_trace */
> -	/*  68 */ "select_trace",
> -	/*  69 */ "integer",
> -	/* Used by: sql_compound_select_limit */
> -	/*  70 */ "sql_compound_select_limit",
> -	/*  71 */ "integer",
> -	/* Used by: sql_default_engine */
> -	/*  72 */ "sql_default_engine",
> -	/*  73 */ "text",
> -	/* Used by: sql_trace */
> -	/*  74 */ "sql_trace",
> -	/*  75 */ "integer",
> -	/* Used by: vdbe_addoptrace */
> -	/*  76 */ "vdbe_addoptrace",
> -	/*  77 */ "integer",
> -	/* Used by: vdbe_debug */
> -	/*  78 */ "vdbe_debug",
> -	/*  79 */ "integer",
> -	/* Used by: vdbe_eqp */
> -	/*  80 */ "vdbe_eqp",
> -	/*  81 */ "integer",
> -	/* Used by: vdbe_listing */
> -	/*  82 */ "vdbe_listing",
> -	/*  83 */ "integer",
> -	/* Used by: vdbe_trace */
> -	/*  84 */ "vdbe_trace",
> -	/*  85 */ "integer",
> -	/* Used by: where_trace */
> -	/*  86 */ "where_trace",
> -	/*  87 */ "integer",
>  };
>  
>  /* Definitions of all built-in pragmas */
> @@ -159,22 +109,12 @@ static const PragmaName aPragmaName[] = {
>  	 /* ePragFlg:  */ PragFlg_Result0,
>  	 /* ColNames:  */ 38, 2,
>  	 /* iArg:      */ 0},
> -	{ /* zName:     */ "defer_foreign_keys",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 58, 1,
> -	 /* iArg:      */ SQL_DeferFKs},
>  	{ /* zName:     */ "foreign_key_list",
>  	 /* ePragTyp:  */ PragTyp_FOREIGN_KEY_LIST,
>  	 /* ePragFlg:  */
>  	 PragFlg_NeedSchema | PragFlg_Result1 | PragFlg_SchemaOpt,
>  	 /* ColNames:  */ 42, 8,
>  	 /* iArg:      */ 0},
> -	{ /* zName:     */ "full_column_names",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 60, 1,
> -	 /* iArg:      */ SQL_FullColNames},
>  	{ /* zName:     */ "index_info",
>  	 /* ePragTyp:  */ PragTyp_INDEX_INFO,
>  	 /* ePragFlg:  */
> @@ -187,47 +127,6 @@ static const PragmaName aPragmaName[] = {
>  	 PragFlg_NeedSchema | PragFlg_Result1 | PragFlg_SchemaOpt,
>  	 /* ColNames:  */ 32, 3,
>  	 /* iArg:      */ 0},
> -#if defined(SQL_DEBUG)
> -	{ /* zName:     */ "parser_trace",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 62, 1,
> -	 /* iArg:      */ PARSER_TRACE_FLAG},
> -#endif
> -	{ /* zName:     */ "recursive_triggers",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 64, 1,
> -	 /* iArg:      */ SQL_RecTriggers},
> -	{ /* zName:     */ "reverse_unordered_selects",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 66, 1,
> -	 /* iArg:      */ SQL_ReverseOrder},
> -#if defined(SQL_DEBUG)
> -	{ /* zName:     */ "select_trace",
> -	/* ePragTyp:  */ PragTyp_FLAG,
> -	/* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	/* ColNames:  */ 68, 1,
> -	/* iArg:      */ SQL_SelectTrace},
> -#endif
> -	{ /* zName:     */ "sql_compound_select_limit",
> -	/* ePragTyp:  */ PragTyp_COMPOUND_SELECT_LIMIT,
> -	/* ePragFlg:  */ PragFlg_Result0,
> -	/* ColNames:  */ 70, 1,
> -	/* iArg:      */ 0},
> -	{ /* zName:     */ "sql_default_engine",
> -	 /* ePragTyp:  */ PragTyp_DEFAULT_ENGINE,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 72, 1,
> -	 /* iArg:      */ 0},
> -#if defined(SQL_DEBUG)
> -	{ /* zName:     */ "sql_trace",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 74, 1,
> -	 /* iArg:      */ SQL_SqlTrace},
> -#endif
>  	{ /* zName:     */ "stats",
>  	 /* ePragTyp:  */ PragTyp_STATS,
>  	 /* ePragFlg:  */
> @@ -240,38 +139,5 @@ static const PragmaName aPragmaName[] = {
>  	 PragFlg_NeedSchema | PragFlg_Result1 | PragFlg_SchemaOpt,
>  	 /* ColNames:  */ 0, 6,
>  	 /* iArg:      */ 0},
> -#if defined(SQL_DEBUG)
> -	{ /* zName:     */ "vdbe_addoptrace",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 76, 1,
> -	 /* iArg:      */ SQL_VdbeAddopTrace},
> -	{ /* zName:     */ "vdbe_debug",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 78, 1,
> -	 /* iArg:      */
> -	 SQL_SqlTrace | SQL_VdbeListing | SQL_VdbeTrace},
> -	{ /* zName:     */ "vdbe_eqp",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 80, 1,
> -	 /* iArg:      */ SQL_VdbeEQP},
> -	{ /* zName:     */ "vdbe_listing",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 82, 1,
> -	 /* iArg:      */ SQL_VdbeListing},
> -	{ /* zName:     */ "vdbe_trace",
> -	 /* ePragTyp:  */ PragTyp_FLAG,
> -	 /* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	 /* ColNames:  */ 84, 1,
> -	 /* iArg:      */ SQL_VdbeTrace},
> -	{ /* zName:     */ "where_trace",
> -	/* ePragTyp:  */ PragTyp_FLAG,
> -	/* ePragFlg:  */ PragFlg_Result0 | PragFlg_NoColumns1,
> -	/* ColNames:  */ 86, 1,
> -	/* iArg:      */ SQL_WhereTrace},
> -#endif
>  };
>  /* Number of pragmas: 36 on by default, 47 total. */
> diff --git a/src/box/sql/sqlInt.h b/src/box/sql/sqlInt.h
> index 27a4c41..927c674 100644
> --- a/src/box/sql/sqlInt.h
> +++ b/src/box/sql/sqlInt.h
> @@ -333,6 +333,11 @@ enum sql_ret_code {
>  	SQL_DONE = 2,
>  };
>  
> +enum sql_setting_type {
> +	SQL_SESSION_SETTING = 0,
> +	SQL_GLOBAL_SETTING = 1,
> +};
> +
>  void *
>  sql_malloc(int);
>  
> @@ -3946,8 +3951,6 @@ int
>  sql_rem_int(int64_t lhs, bool is_lhs_neg, int64_t rhs, bool is_rhs_neg,
>  	    int64_t *res, bool *is_res_neg);
>  
> -u8 sqlGetBoolean(const char *z, u8);
> -
>  const void *sqlValueText(sql_value *);
>  int sqlValueBytes(sql_value *);
>  void sqlValueSetStr(sql_value *, int, const void *,
> @@ -4463,4 +4466,54 @@ int
>  sql_fieldno_by_name(struct Parse *parse_context, struct Expr *field_name,
>  		    uint32_t *fieldno);
>  
> +/**
> + * Create VDBE instructions to set new value of SQL setting.
> + *
> + * @param parse_context Parsing context.
> + * @param name Name of the SQL setting.
> + * @param value New value of the SQL setting.
> + */
> +void
> +sql_set_settings(struct Parse *parse_context, struct Token *name,
> +		 struct Expr *value);
> +
> +/**
> + * Set a new value for boolean SQL setting.
> + *
> + * @param id ID of the SQL setting.
> + * @param type type of the SQL setting.
> + * @param value New value of the SQL setting.
> + *
> + * @retval 0 on success.
> + * @retval -1 on error.
> + */
> +int
> +sql_set_boolean_option(int id, enum sql_setting_type type, bool value);
> +
> +/**
> + * Set a new value for string SQL setting.
> + *
> + * @param id ID of the SQL setting.
> + * @param type type of the SQL setting.
> + * @param value New value of the SQL setting.
> + *
> + * @retval 0 on success.
> + * @retval -1 on error.
> + */
> +int
> +sql_set_string_option(int id, enum sql_setting_type type, const char *value);
> +
> +/**
> + * Set a new value for integer SQL setting.
> + *
> + * @param id ID of the SQL setting.
> + * @param type type of the SQL setting.
> + * @param value New value of the SQL setting.
> + *
> + * @retval 0 on success.
> + * @retval -1 on error.
> + */
> +int
> +sql_set_integer_option(int id, enum sql_setting_type type, int value);
> +
>  #endif				/* sqlINT_H */
> diff --git a/src/box/sql/vdbe.c b/src/box/sql/vdbe.c
> index 2e51a0d..788696f 100644
> --- a/src/box/sql/vdbe.c
> +++ b/src/box/sql/vdbe.c
> @@ -5254,6 +5254,31 @@ case OP_IncMaxid: {
>  	break;
>  }
>  
> +/* Opcode: Set P1 P2 P3 * *
> + *
> + * Set new value to SQL setting. P1 is either SQL_SESSION_SETTING
> + * or SQL_GLOBAL_SETTING. P2 is ID of the setting. P3 is an ID of
> + * register that contains value of the setting.
> + */
> +case OP_Set: {
> +	assert(pOp->p1 == SQL_SESSION_SETTING || pOp->p1 == SQL_GLOBAL_SETTING);
> +	pIn3 = &aMem[pOp->p3];
> +
> +	if ((pIn3->flags & MEM_Bool) != 0) {
> +		if (sql_set_boolean_option(pOp->p2, pOp->p1, pIn3->u.b) != 0)
> +			goto abort_due_to_error;
> +	} else if ((pIn3->flags & MEM_Str) != 0) {
> +		if (sql_set_string_option(pOp->p2, pOp->p1, pIn3->z) != 0)
> +			goto abort_due_to_error;
> +	} else {
> +		assert((pIn3->flags & MEM_Int) != 0 ||
> +		       (pIn3->flags & MEM_UInt) != 0);
> +		if (sql_set_integer_option(pOp->p2, pOp->p1, pIn3->u.i) != 0)
> +			goto abort_due_to_error;
> +	}
> +	break;
> +}
> +
>  /* Opcode: Noop * * * * *
>   *
>   * Do nothing.  This instruction is often useful as a jump
> diff --git a/test/sql-tap/analyze4.test.lua b/test/sql-tap/analyze4.test.lua
> index 7d7498f..cc530ce 100755
> --- a/test/sql-tap/analyze4.test.lua
> +++ b/test/sql-tap/analyze4.test.lua
> @@ -70,9 +70,9 @@ test:do_test(
>      function()
>          return test:execsql([[
>              UPDATE t1 SET b='x' WHERE a%2;
> --- pragma vdbe_debug=1;
> +-- set vdbe_debug=true;
>              ANALYZE;
> --- pragma vdbe_debug=0;
> +-- set vdbe_debug=false;
>              SELECT "idx", "stat" FROM "_sql_stat1" WHERE "tbl"='T1' ORDER BY "idx";
>          ]])
>      end, {
> diff --git a/test/sql-tap/autoinc.test.lua b/test/sql-tap/autoinc.test.lua
> index 39e4796..7b36379 100755
> --- a/test/sql-tap/autoinc.test.lua
> +++ b/test/sql-tap/autoinc.test.lua
> @@ -640,7 +640,7 @@ test:do_test(
>          -- </autoinc-10.3>
>      })
>  
> -test:catchsql(" pragma recursive_triggers = off ")
> +test:catchsql("SET sql_recursive_triggers = false")
>  -- Ticket #3928.  Make sure that triggers to not make extra slots in
>  -- the sql_SEQUENCE table.
>  --
> diff --git a/test/sql-tap/colname.test.lua b/test/sql-tap/colname.test.lua
> index de03d7c..1037bed 100755
> --- a/test/sql-tap/colname.test.lua
> +++ b/test/sql-tap/colname.test.lua
> @@ -43,14 +43,14 @@ local function lreplace(arr, pos, len, val)
>  end
>  
>  test:do_test(
> -    "colname-1.1",
> +    "colname-1.2",
>      function()
> -        return test:execsql "PRAGMA full_column_names"
> -    end, {
> +        return box.space._vsession_settings:get("sql_full_column_names").value
> +    end,
>          -- <colname-1.2>
> -        0
> +        false
>          -- </colname-1.2>
> -    })
> +    )
>  
>  -- Tests for then short=ON and full=any
>  --
> @@ -163,7 +163,7 @@ test:do_test(
>      "colname-3.1",
>      function()
>          test:execsql [[
> -            PRAGMA full_column_names='OFF';
> +            SET sql_full_column_names = false;
>              CREATE VIEW v3 AS SELECT tabC.a, txyZ.x, *
>                FROM tabc, txyz ORDER BY 1 LIMIT 1;
>              CREATE VIEW v4 AS SELECT tabC.a, txyZ.x, tboTh.a, tbotH.x, * 
> @@ -283,7 +283,7 @@ test:do_test(
>      "colname-4.1",
>      function()
>          test:execsql [[
> -            PRAGMA full_column_names='ON';
> +            SET sql_full_column_names = true;
>              CREATE VIEW v5 AS SELECT tabC.a, txyZ.x, *
>                FROM tabc, txyz ORDER BY 1 LIMIT 1;
>              CREATE VIEW v6 AS SELECT tabC.a, txyZ.x, tboTh.a, tbotH.x, * 
> @@ -440,7 +440,7 @@ test:do_test(
>          -- instead of reconnect to database
>          -- we are just turning settings to default state
>          test:execsql([[
> -            PRAGMA full_column_names='OFF';
> +            SET sql_full_column_names = false;
>              ]])
>          test:execsql [=[
>              CREATE TABLE t6(a INT primary key, "'a'" INT, """a""" INT, "[a]" INT,  "`a`" INT);
> diff --git a/test/sql-tap/fkey2.test.lua b/test/sql-tap/fkey2.test.lua
> index 264616d..de89790 100755
> --- a/test/sql-tap/fkey2.test.lua
> +++ b/test/sql-tap/fkey2.test.lua
> @@ -450,7 +450,7 @@ test:do_execsql_test(
>  test:do_execsql_test(
>      "fkey2-4.2",
>      [[
> -        PRAGMA recursive_triggers = off;
> +        SET sql_recursive_triggers = false;
>          DELETE FROM t1 WHERE node = 1;
>          SELECT node FROM t1;
>      ]], {
> @@ -473,7 +473,7 @@ test:do_execsql_test(
>  test:do_execsql_test(
>      "fkey2-4.4",
>      [[
> -        PRAGMA recursive_triggers = on;
> +        SET sql_recursive_triggers = true;
>          DROP TABLE t2;
>          DROP TABLE t1;
>          CREATE TABLE t1(
> diff --git a/test/sql-tap/gh2548-select-compound-limit.test.lua b/test/sql-tap/gh2548-select-compound-limit.test.lua
> index f578870..c802003 100755
> --- a/test/sql-tap/gh2548-select-compound-limit.test.lua
> +++ b/test/sql-tap/gh2548-select-compound-limit.test.lua
> @@ -1,6 +1,6 @@
>  #!/usr/bin/env tarantool
>  test = require("sqltester")
> -test:plan(14)
> +test:plan(13)
>  
>  -- box.cfg{wal_mode='none'}
>  
> @@ -53,7 +53,6 @@ for _, term in ipairs({'UNION', 'UNION ALL', 'INTERSECT', 'EXCEPT'}) do
>  --    end
>  end
>  
> -
>  test:do_catchsql_test(
>      "gh2548-select-compound-limit-2",
>      select_string_last, {
> @@ -63,20 +62,10 @@ test:do_catchsql_test(
>      })
>  
>  test:do_execsql_test(
> -    "gh2548-select-compound-limit-3.1", [[
> -        pragma sql_compound_select_limit
> -    ]], {
> -        -- <gh2548-select-compound-limit-3.1>
> -        30
> -        -- </gh2548-select-compound-limit-3.1>
> -    })
> -
> -test:do_execsql_test(
>      "gh2548-select-compound-limit-3.2", [[
> -        pragma sql_compound_select_limit=31
> +        SET sql_compound_select_limit = 31;
>      ]], {
>          -- <gh2548-select-compound-limit-3.2>
> -        31
>          -- </gh2548-select-compound-limit-3.2>
>  })
>  
> @@ -90,10 +79,9 @@ test:do_execsql_test(
>  
>  test:do_execsql_test(
>      "gh2548-select-compound-limit-3.4", [[
> -        pragma sql_compound_select_limit=0
> +        SET sql_compound_select_limit = 0;
>      ]], {
>          -- <gh2548-select-compound-limit-3.4>
> -        0
>          -- </gh2548-select-compound-limit-3.4>
>      })
>  
> diff --git a/test/sql-tap/lua/sqltester.lua b/test/sql-tap/lua/sqltester.lua
> index 0f34114..c50e3fd 100644
> --- a/test/sql-tap/lua/sqltester.lua
> +++ b/test/sql-tap/lua/sqltester.lua
> @@ -413,7 +413,7 @@ box.cfg{
>  }
>  
>  local engine = test_run and test_run:get_cfg('engine') or 'memtx'
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  function test.engine(self)
>      return engine
> diff --git a/test/sql-tap/misc1.test.lua b/test/sql-tap/misc1.test.lua
> index b84093e..339c9d7 100755
> --- a/test/sql-tap/misc1.test.lua
> +++ b/test/sql-tap/misc1.test.lua
> @@ -219,7 +219,7 @@ test:do_test(
>          local r = test:execsql([[
>              CREATE TABLE t1(a TEXT primary KEY);
>              INSERT INTO t1 VALUES('hi');
> -            PRAGMA full_column_names=on;
> +            SET sql_full_column_names = true;
>              --SELECT rowid, * FROM t1;
>              SELECT * FROM t1;
>          ]])
> diff --git a/test/sql-tap/pragma.test.lua b/test/sql-tap/pragma.test.lua
> index b3821dc..d6f8b54 100755
> --- a/test/sql-tap/pragma.test.lua
> +++ b/test/sql-tap/pragma.test.lua
> @@ -1,7 +1,7 @@
>  #!/usr/bin/env tarantool
>  test = require("sqltester")
>  
> -test:plan(23)
> +test:plan(10)
>  
>  test:do_catchsql_test(
>  	"pragma-1.3",
> @@ -19,66 +19,7 @@ test:do_catchsql_test(
>  	[[
>  		pragma sql_default_engine='creepy';
>  	]], {
> -	1, "Space engine 'creepy' does not exist"
> -})
> -
> -test:do_catchsql_test(
> -	"pragma-2.2",
> -	[[
> -		pragma sql_default_engine='vinyl';
> -	]], {
> -	0
> -})
> -
> -test:do_catchsql_test(
> -	"pragma-2.3",
> -	[[
> -		pragma sql_default_engine='memtx';
> -	]], {
> -	0
> -})
> -
> -test:do_catchsql_test(
> -	"pragma-2.4",
> -	[[
> -		pragma sql_default_engine 'memtx';
> -	]], {
> -	1, "Syntax error near ''memtx''"
> -})
> -
> -test:do_catchsql_test(
> -	"pragma-2.5",
> -	[[
> -		pragma sql_default_engine 1;
> -	]], {
> -	1, "Syntax error near '1'"
> -})
> -
> ---
> --- gh-3832: Some statements do not return column type
> ---
> --- Check that "PRAGMA sql_default_engine" called without arguments
> --- returns currently set sql_default_engine.
> -test:do_execsql_test(
> -	"pragma-3.1",
> -	[[
> -		pragma sql_default_engine='vinyl';
> -		pragma sql_default_engine;
> -	]], {
> -	-- <pragma-3.1>
> -	'vinyl'
> -	-- </pragma-3.1>
> -})
> -
> -test:do_execsql_test(
> -	"pragma-3.2",
> -	[[
> -		pragma sql_default_engine='memtx';
> -		pragma sql_default_engine;
> -	]], {
> -	-- <pragma-3.2>
> -	'memtx'
> -	-- </pragma-3.2>
> +	1, "Pragma 'SQL_DEFAULT_ENGINE' does not exist"
>  })
>  
>  --
> @@ -187,76 +128,4 @@ test:do_execsql_test(
>  	-- </pragma-8.4>
>  })
>  
> ----
> ---- pragma sql_default_engine accepts string values and rejects IDs
> ----
> -test:do_catchsql_test(
> -	"pragma-9.1",
> -	[[
> -		pragma sql_default_engine(the_engine);
> -	]], {
> -	-- <pragma-9.1>
> -	1, "Illegal parameters, string value is expected"
> -	-- </pragma-9.1>
> -})
> -
> -test:do_catchsql_test(
> -	"pragma-9.2",
> -	[[
> -		pragma sql_default_engine(THE_ENGINE);
> -	]], {
> -	-- <pragma-9.2>
> -	1, "Illegal parameters, string value is expected"
> -	-- </pragma-9.2>
> -})
> -
> -test:do_catchsql_test(
> -	"pragma-9.3",
> -	[[
> -		pragma sql_default_engine("THE_ENGINE");
> -	]], {
> -	-- <pragma-9.3>
> -	1, "Illegal parameters, string value is expected"
> -	-- </pragma-9.3>
> -})
> -
> -test:do_catchsql_test(
> -	"pragma-9.4",
> -	[[
> -		pragma sql_default_engine('THE_ENGINE');
> -	]], {
> -	-- <pragma-9.4>
> -	1, "Space engine 'THE_ENGINE' does not exist"
> -	-- </pragma-9.4>
> -})
> -
> -test:do_catchsql_test(
> -	"pragma-9.5",
> -	[[
> -		pragma sql_default_engine(memtx);
> -	]], {
> -	-- <pragma-9.5>
> -	1, "Illegal parameters, string value is expected"
> -	-- </pragma-9.5>
> -})
> -
> -test:do_catchsql_test(
> -	"pragma-9.6",
> -	[[
> -		pragma sql_default_engine("memtx");
> -	]], {
> -	-- <pragma-9.6>
> -	1, "Illegal parameters, string value is expected"
> -	-- </pragma-9.6>
> -})
> -
> -test:do_execsql_test(
> -	"pragma-9.7",
> -	[[
> -		pragma sql_default_engine('memtx');
> -	]], {
> -	-- <pragma-9.7>
> -	-- </pragma-9.7>
> -})
> -
>  test:finish_test()
> diff --git a/test/sql-tap/select1.test.lua b/test/sql-tap/select1.test.lua
> index d8fe7a9..2caa612 100755
> --- a/test/sql-tap/select1.test.lua
> +++ b/test/sql-tap/select1.test.lua
> @@ -916,7 +916,7 @@ test:do_catchsql2_test(
>  test:do_test(
>      "select1-6.1.1",
>      function()
> -        test:execsql "PRAGMA full_column_names=on"
> +        test:execsql "SET sql_full_column_names = true"
>          return test:catchsql2 "SELECT f1 FROM test1 ORDER BY f2"
>      end, {
>          -- <select1-6.1.1>
> @@ -952,7 +952,7 @@ test:do_test(
>              msg = test:execsql2 "SELECT DISTINCT * FROM test1 WHERE f1==11"
>              end)
>          v = v == true and {0} or {1} 
> -        test:execsql "PRAGMA full_column_names=off"
> +        test:execsql "SET sql_full_column_names = false"
>          return table.insert(v,msg) or v
>      end, {
>          -- <select1-6.1.4>
> @@ -1043,13 +1043,13 @@ test:do_catchsql2_test(
>  test:do_test(
>      "select1-6.5.1",
>      function()
> -        test:execsql2 "PRAGMA full_column_names=on"
> +        test:execsql2 "SET sql_full_column_names = true"
>          local msg
>          v = pcall( function ()
>                  msg = test:execsql2 "SELECT test1.f1+F2 FROM test1 ORDER BY f2"
>              end)
>          v = v == true and {0} or {1}
> -        test:execsql2 "PRAGMA full_column_names=off"
> +        test:execsql2 "SET sql_full_column_names = false"
>          return table.insert(v,msg) or v
>      end, {
>          -- <select1-6.5.1>
> @@ -1124,7 +1124,7 @@ test:do_test(
>      "select1-6.9.3",
>      function()
>          test:execsql [[
> -            PRAGMA full_column_names='OFF';
> +            SET sql_full_column_names = false;
>          ]]
>          return test:execsql2 [[
>              SELECT test1 . f1, test1 . f2 FROM test1 LIMIT 1
> @@ -1139,7 +1139,7 @@ test:do_test(
>      "select1-6.9.4",
>      function()
>          test:execsql [[
> -            PRAGMA full_column_names='ON';
> +            SET sql_full_column_names = true;
>          ]]
>          return test:execsql2 [[
>              SELECT test1 . f1, test1 . f2 FROM test1 LIMIT 1
> @@ -1154,7 +1154,7 @@ test:do_test(
>      "select1-6.9.5",
>      function()
>          test:execsql [[
> -            PRAGMA full_column_names='ON';
> +            SET sql_full_column_names = true;
>          ]]
>          return test:execsql2 [[
>              SELECT 123.45;
> @@ -1235,7 +1235,7 @@ test:do_test(
>      "select1-6.9.11",
>      function()
>          test:execsql [[
> -            PRAGMA full_column_names='ON';
> +            SET sql_full_column_names = true;
>          ]]
>          return test:execsql2 [[
>              SELECT a.f1, b.f2 FROM test1 a, test1 b LIMIT 1
> @@ -1260,7 +1260,7 @@ test:do_test(
>      "select1-6.9.13",
>      function()
>          test:execsql [[
> -            PRAGMA full_column_names='OFF';
> +            SET sql_full_column_names = false;
>          ]]
>          return test:execsql2 [[
>              SELECT a.f1, b.f1 FROM test1 a, test1 b LIMIT 1
> @@ -1285,7 +1285,7 @@ test:do_test(
>      "select1-6.9.15",
>      function()
>          test:execsql [[
> -            PRAGMA full_column_names='ON';
> +            SET sql_full_column_names = true;
>          ]]
>          return test:execsql2 [[
>              SELECT a.f1, b.f1 FROM test1 a, test1 b LIMIT 1
> @@ -1307,7 +1307,7 @@ test:do_execsql2_test(
>      })
>  
>  test:execsql [[
> -    PRAGMA full_column_names='OFF';
> +    SET sql_full_column_names = false;
>  ]]
>  test:do_catchsql2_test(
>          "select1-6.10",
> diff --git a/test/sql-tap/tkt3731.test.lua b/test/sql-tap/tkt3731.test.lua
> index 454cf67..57e7f3f 100755
> --- a/test/sql-tap/tkt3731.test.lua
> +++ b/test/sql-tap/tkt3731.test.lua
> @@ -22,7 +22,7 @@ test:plan(3)
>  -- The tests in this file were written before sql supported recursive
>  -- trigger invocation, and some tests depend on that to pass. So disable
>  -- recursive triggers for this file.
> -test:catchsql " pragma recursive_triggers = off "
> +test:catchsql("SET sql_recursive_triggers = false")
>  test:do_execsql_test(
>      "tkt3731-1.1",
>      [[
> diff --git a/test/sql-tap/trigger2.test.lua b/test/sql-tap/trigger2.test.lua
> index 6e60050..dbe54db 100755
> --- a/test/sql-tap/trigger2.test.lua
> +++ b/test/sql-tap/trigger2.test.lua
> @@ -58,7 +58,7 @@ test:plan(26)
>  -- The tests in this file were written before sql supported recursive
>  -- trigger invocation, and some tests depend on that to pass. So disable
>  -- recursive triggers for this file.
> -test:catchsql " pragma recursive_triggers = off "
> +test:catchsql("SET sql_recursive_triggers = false")
>  -- 1.
>  ii = 0
>  tbl_definitions = { "CREATE TABLE tbl (id INT PRIMARY KEY AUTOINCREMENT, a INTEGER UNIQUE, b INT );",
> diff --git a/test/sql-tap/triggerC.test.lua b/test/sql-tap/triggerC.test.lua
> index cf7dd7b..f9b7034 100755
> --- a/test/sql-tap/triggerC.test.lua
> +++ b/test/sql-tap/triggerC.test.lua
> @@ -1,6 +1,6 @@
>  #!/usr/bin/env tarantool
>  test = require("sqltester")
> -test:plan(48)
> +test:plan(45)
>  
>  --!./tcltestrunner.lua
>  -- 2009 August 24
> @@ -36,12 +36,9 @@ testprefix = "triggerC"
>  --               REPLACE conflict resolution. And that they are not fired
>  --               if recursive triggers are not enabled.
>  --
> --- triggerC-6.*: Test that the recursive_triggers pragma returns correct
> ---               results when invoked without an argument.
> ---
>  -- Enable recursive triggers for this file.
>  --
> -test:execsql " PRAGMA recursive_triggers = on "
> +test:execsql("SET sql_recursive_triggers = true;")
>  ---------------------------------------------------------------------------
>  -- This block of tests, triggerC-1.*, are not aimed at any specific
>  -- property of the triggers sub-system. They were created to debug
> @@ -504,7 +501,7 @@ test:do_execsql_test(
>  test:do_execsql_test(
>      "triggerC-5.3.0",
>      [[
> -        PRAGMA recursive_triggers = off
> +        SET sql_recursive_triggers = false
>      ]], {
>          -- <triggerC-5.3.0>
>  
> @@ -534,49 +531,13 @@ test:do_execsql_test(
>  test:do_execsql_test(
>      "triggerC-5.3.8",
>      [[
> -        PRAGMA recursive_triggers = on
> +        SET sql_recursive_triggers = true
>      ]], {
>          -- <triggerC-5.3.8>
>  
>          -- </triggerC-5.3.8>
>      })
>  
> ----------------------------------------------------------------------------
> --- This block of tests, triggerC-6.*, tests that "PRAGMA recursive_triggers"
> --- statements return the current value of the recursive triggers flag.
> ---
> -test:do_execsql_test(
> -    "triggerC-6.1",
> -    [[
> -        PRAGMA recursive_triggers
> -    ]], {
> -        -- <triggerC-6.1>
> -        1
> -        -- </triggerC-6.1>
> -    })
> -
> -test:do_execsql_test(
> -    "triggerC-6.2",
> -    [[
> -        PRAGMA recursive_triggers = off;
> -        PRAGMA recursive_triggers;
> -    ]], {
> -        -- <triggerC-6.2>
> -        0
> -        -- </triggerC-6.2>
> -    })
> -
> -test:do_execsql_test(
> -    "triggerC-6.3",
> -    [[
> -        PRAGMA recursive_triggers = on;
> -        PRAGMA recursive_triggers;
> -    ]], {
> -        -- <triggerC-6.3>
> -        1
> -        -- </triggerC-6.3>
> -    })
> -
>  -- MUST_WORK_TEST
>  -- #-------------------------------------------------------------------------
>  -- # Test some of the "undefined behaviour" associated with triggers. The
> @@ -890,7 +851,7 @@ test:execsql(
>  test:do_execsql_test(
>      "triggerC-13.1",
>      [[
> -        PRAGMA recursive_triggers = 'ON';
> +        SET sql_recursive_triggers = true;
>          CREATE TABLE t12(id INTEGER PRIMARY KEY, a INT, b INT);
>          INSERT INTO t12 VALUES(1, 1, 2);
>          CREATE TRIGGER tr12 AFTER UPDATE ON t12 FOR EACH ROW BEGIN
> @@ -974,7 +935,7 @@ test:do_execsql_test(
>  test:do_execsql_test(
>      "triggerC-15.1.1",
>      [[
> -        PRAGMA recursive_triggers = 1;
> +        SET sql_recursive_triggers = true;
>          CREATE TABLE node(
>              id int not null primary key,
>              pid int not null default 0,
> diff --git a/test/sql-tap/update.test.lua b/test/sql-tap/update.test.lua
> index ac0389a..992a3c7 100755
> --- a/test/sql-tap/update.test.lua
> +++ b/test/sql-tap/update.test.lua
> @@ -442,7 +442,6 @@ test:do_execsql_test("update-5.6.5", [[
>  
>  -- Repeat the previous sequence of tests with a different index.
>  --
> ---test:execsql "PRAGMA synchronous='FULL'"
>  test:do_test("update-6.0", function()
>    test:execsql "DROP INDEX idx1 ON test1"
>    test:execsql "CREATE INDEX idx1 ON test1(f2)"
> diff --git a/test/sql-tap/whereA.test.lua b/test/sql-tap/whereA.test.lua
> index b82575f..21675d5 100755
> --- a/test/sql-tap/whereA.test.lua
> +++ b/test/sql-tap/whereA.test.lua
> @@ -14,7 +14,7 @@ test:plan(17)
>  --
>  -------------------------------------------------------------------------
>  -- This file implements regression tests for sql library. The
> --- focus of this file is testing the reverse_select_order pragma.
> +-- focus of this file is testing the reverse_select_order option.
>  --
>  -- $Id: whereA.test,v 1.3 2009/06/10 19:33:29 drh Exp $
>  -- ["set","testdir",[["file","dirname",["argv0"]]]]
> @@ -39,7 +39,7 @@ test:do_test(
>      "whereA-1.2",
>      function()
>          return test:execsql [[
> -            PRAGMA reverse_unordered_selects=1;
> +            SET sql_reverse_unordered_selects = true;
>              SELECT * FROM t1;
>          ]]
>      end, {
> @@ -55,7 +55,7 @@ test:do_test(
>          --db close
>          --sql db test.db
>          return test:execsql [[
> -            PRAGMA reverse_unordered_selects=1;
> +            SET sql_reverse_unordered_selects = true;
>              SELECT * FROM t1;
>          ]]
>      end, {
> @@ -68,7 +68,7 @@ test:do_test(
>  --   db close
>  --   sql db test.db
>  --   db eval {
> ---     PRAGMA reverse_unordered_selects=1;
> +--     SET sql_reverse_unordered_selects = true;
>  --     SELECT * FROM t1 ORDER BY rowid;
>  --   }
>  -- } {1 2 3 2 hello world 3 4.53 {}}
> @@ -76,11 +76,11 @@ test:do_test(
>      "whereA-1.6",
>      function()
>          return test:execsql [[
> -            PRAGMA reverse_unordered_selects;
> +            SELECT "value" FROM "_vsession_settings" WHERE "name" = 'sql_reverse_unordered_selects';
>          ]]
>      end, {
>          -- <whereA-1.6>
> -        1
> +        true
>          -- </whereA-1.6>
>      })
>  
> @@ -108,7 +108,7 @@ test:do_test(
>      "whereA-2.1",
>      function()
>          return test:execsql [[
> -            PRAGMA reverse_unordered_selects=0;
> +            SET sql_reverse_unordered_selects = false;
>              SELECT * FROM t1 WHERE a>0;
>          ]]
>      end, {
> @@ -121,7 +121,7 @@ test:do_test(
>      "whereA-2.2",
>      function()
>          return test:execsql [[
> -            PRAGMA reverse_unordered_selects=1;
> +            SET sql_reverse_unordered_selects = true;
>              SELECT * FROM t1 WHERE a>0;
>          ]]
>      end, {
> @@ -132,7 +132,7 @@ test:do_test(
>  
>  -- do_test whereA-2.3 {
>  --   db eval {
> ---     PRAGMA reverse_unordered_selects=1;
> +--     SET sql_reverse_unordered_selects = true;
>  --     SELECT * FROM t1 WHERE a>0 ORDER BY rowid;
>  --   }
>  -- } {1 2 3 2 hello world 3 4.53 {}}
> @@ -140,7 +140,7 @@ test:do_test(
>      "whe:reA-3.1",
>      function()
>          return test:execsql [[
> -            PRAGMA reverse_unordered_selects=0;
> +            SET sql_reverse_unordered_selects = false;
>              SELECT * FROM t1 WHERE b>0;
>          ]]
>      end, {
> @@ -153,7 +153,7 @@ test:do_test(
>      "whereA-3.2",
>      function()
>          return test:execsql [[
> -            PRAGMA reverse_unordered_selects=1;
> +            SET sql_reverse_unordered_selects = true;
>              SELECT * FROM t1 WHERE b>0;
>          ]]
>      end, {
> @@ -166,7 +166,7 @@ test:do_test(
>      "whereA-3.3",
>      function()
>          return test:execsql [[
> -            PRAGMA reverse_unordered_selects=1;
> +            SET sql_reverse_unordered_selects = true;
>              SELECT * FROM t1 WHERE b>0 ORDER BY b;
>          ]]
>      end, {
> diff --git a/test/sql/check-clear-ephemeral.result b/test/sql/check-clear-ephemeral.result
> index 7d0be5f..3b12457 100644
> --- a/test/sql/check-clear-ephemeral.result
> +++ b/test/sql/check-clear-ephemeral.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -15,7 +15,7 @@ box.execute("CREATE TABLE t1(a INT,b INT,c INT,PRIMARY KEY(b,c));")
>  - row_count: 1
>  ...
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  -- Seed entries
>  box.execute("WITH RECURSIVE cnt(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM cnt WHERE x<1000) INSERT INTO t1 SELECT x, x%40, x/40 FROM cnt;")
>  ---
> diff --git a/test/sql/check-clear-ephemeral.test.lua b/test/sql/check-clear-ephemeral.test.lua
> index 929a6c9..2ecf11c 100644
> --- a/test/sql/check-clear-ephemeral.test.lua
> +++ b/test/sql/check-clear-ephemeral.test.lua
> @@ -1,13 +1,13 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  -- box.cfg()
>  
>  -- create space
>  box.execute("CREATE TABLE t1(a INT,b INT,c INT,PRIMARY KEY(b,c));")
>  
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  
>  -- Seed entries
>  box.execute("WITH RECURSIVE cnt(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM cnt WHERE x<1000) INSERT INTO t1 SELECT x, x%40, x/40 FROM cnt;")
> diff --git a/test/sql/checks.result b/test/sql/checks.result
> index a952b2b..f9a6772 100644
> --- a/test/sql/checks.result
> +++ b/test/sql/checks.result
> @@ -11,7 +11,7 @@ test_run:cmd("push filter ".."'\\.lua.*:[0-9]+: ' to '.lua...\"]:<line>: '")
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -736,7 +736,7 @@ physics_ck:drop()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/checks.test.lua b/test/sql/checks.test.lua
> index 4d33823..ffcbd26 100644
> --- a/test/sql/checks.test.lua
> +++ b/test/sql/checks.test.lua
> @@ -2,7 +2,7 @@ env = require('test_run')
>  test_run = env.new()
>  test_run:cmd("push filter ".."'\\.lua.*:[0-9]+: ' to '.lua...\"]:<line>: '")
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  --
>  -- gh-3272: Move SQL CHECK into server
> @@ -240,7 +240,7 @@ physics_ck:drop()
>  -- :enable configurator.
>  --
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  box.execute("CREATE TABLE test(a INT PRIMARY KEY);");
>  box.execute('ALTER TABLE test ADD CONSTRAINT CK CHECK(a < 5);')
>  box.space.TEST:insert({10})
> diff --git a/test/sql/clear.result b/test/sql/clear.result
> index afa6520..baeb15e 100644
> --- a/test/sql/clear.result
> +++ b/test/sql/clear.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -19,7 +19,7 @@ box.execute("CREATE UNIQUE INDEX zoobar2 ON zoobar(c1, c4)")
>  - row_count: 1
>  ...
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON;")
> +-- box.execute("SET vdbe_debug=ON;")
>  -- Seed entry
>  for i=1, 100 do box.execute(string.format("INSERT INTO zoobar VALUES (%d, %d, 'c3', 444)", i+i, i)) end
>  ---
> diff --git a/test/sql/clear.test.lua b/test/sql/clear.test.lua
> index 4c58767..8d5e8fb 100644
> --- a/test/sql/clear.test.lua
> +++ b/test/sql/clear.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- box.cfg()
>  
> @@ -9,7 +9,7 @@ box.execute("CREATE TABLE zoobar (c1 INT, c2 INT PRIMARY KEY, c3 TEXT, c4 INT)")
>  box.execute("CREATE UNIQUE INDEX zoobar2 ON zoobar(c1, c4)")
>  
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON;")
> +-- box.execute("SET vdbe_debug=ON;")
>  
>  -- Seed entry
>  for i=1, 100 do box.execute(string.format("INSERT INTO zoobar VALUES (%d, %d, 'c3', 444)", i+i, i)) end
> diff --git a/test/sql/collation.result b/test/sql/collation.result
> index 11962ef..dc11d28 100644
> --- a/test/sql/collation.result
> +++ b/test/sql/collation.result
> @@ -7,7 +7,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/collation.test.lua b/test/sql/collation.test.lua
> index 1be28b3..5e33562 100644
> --- a/test/sql/collation.test.lua
> +++ b/test/sql/collation.test.lua
> @@ -1,7 +1,7 @@
>  remote = require('net.box')
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- gh-3010: COLLATE after LIMIT should throw an error
>  
> diff --git a/test/sql/ddl.result b/test/sql/ddl.result
> index 28acf37..af833d0 100644
> --- a/test/sql/ddl.result
> +++ b/test/sql/ddl.result
> @@ -8,7 +8,7 @@ json = require('json')
>  engine = test_run:get_cfg('engine')
>   | ---
>   | ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>   | ---
>   | - row_count: 0
>   | ...
> diff --git a/test/sql/ddl.test.lua b/test/sql/ddl.test.lua
> index 6067b61..b6f0c81 100644
> --- a/test/sql/ddl.test.lua
> +++ b/test/sql/ddl.test.lua
> @@ -1,7 +1,7 @@
>  test_run = require('test_run').new()
>  json = require('json')
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  --
>  -- gh-4086: SQL transactional DDL.
> diff --git a/test/sql/delete-multiple-idx.result b/test/sql/delete-multiple-idx.result
> index ca58feb..3d58daf 100644
> --- a/test/sql/delete-multiple-idx.result
> +++ b/test/sql/delete-multiple-idx.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -19,7 +19,7 @@ box.execute("CREATE UNIQUE INDEX t3y ON t3(y);");
>  - row_count: 1
>  ...
>  -- Debug.
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  -- Seed entries.
>  box.execute("INSERT INTO t3 VALUES (1, 1, NULL);");
>  ---
> diff --git a/test/sql/delete-multiple-idx.test.lua b/test/sql/delete-multiple-idx.test.lua
> index a81cccc..2715d2f 100644
> --- a/test/sql/delete-multiple-idx.test.lua
> +++ b/test/sql/delete-multiple-idx.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- box.cfg()
>  
> @@ -9,7 +9,7 @@ box.execute("CREATE TABLE t3(id INT primary key,x INT,y INT);");
>  box.execute("CREATE UNIQUE INDEX t3y ON t3(y);");
>  
>  -- Debug.
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  
>  -- Seed entries.
>  box.execute("INSERT INTO t3 VALUES (1, 1, NULL);");
> diff --git a/test/sql/delete.result b/test/sql/delete.result
> index e27c79d..9aa074f 100644
> --- a/test/sql/delete.result
> +++ b/test/sql/delete.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -15,7 +15,7 @@ box.execute("CREATE TABLE t1(a INT, b INT, PRIMARY KEY(a, b));");
>  - row_count: 1
>  ...
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  -- Seed entries
>  box.execute("INSERT INTO t1 VALUES(1, 2);");
>  ---
> diff --git a/test/sql/delete.test.lua b/test/sql/delete.test.lua
> index 75448d4..ff1e622 100644
> --- a/test/sql/delete.test.lua
> +++ b/test/sql/delete.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- box.cfg()
>  
> @@ -8,7 +8,7 @@ box.execute('pragma sql_default_engine=\''..engine..'\'')
>  box.execute("CREATE TABLE t1(a INT, b INT, PRIMARY KEY(a, b));");
>  
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  
>  -- Seed entries
>  box.execute("INSERT INTO t1 VALUES(1, 2);");
> diff --git a/test/sql/drop-index.result b/test/sql/drop-index.result
> index e8eb642..551e56f 100644
> --- a/test/sql/drop-index.result
> +++ b/test/sql/drop-index.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -23,7 +23,7 @@ box.execute("CREATE        INDEX zoobar3 ON zzoobar(c3)")
>  - row_count: 1
>  ...
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zzoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zzoobar VALUES (111, 222, 'c3', 444)")
>  -- Dummy entry
>  box.execute("INSERT INTO zzoobar VALUES (111, 222, 'c3', 444)")
>  ---
> diff --git a/test/sql/drop-index.test.lua b/test/sql/drop-index.test.lua
> index 8cd86ee..fd420b6 100644
> --- a/test/sql/drop-index.test.lua
> +++ b/test/sql/drop-index.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- box.cfg()
>  
> @@ -11,7 +11,7 @@ box.execute("CREATE UNIQUE INDEX zoobar2 ON zzoobar(c1, c4)")
>  box.execute("CREATE        INDEX zoobar3 ON zzoobar(c3)")
>  
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zzoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zzoobar VALUES (111, 222, 'c3', 444)")
>  
>  -- Dummy entry
>  box.execute("INSERT INTO zzoobar VALUES (111, 222, 'c3', 444)")
> diff --git a/test/sql/drop-table.result b/test/sql/drop-table.result
> index 7bc073d..ef4c5cf 100644
> --- a/test/sql/drop-table.result
> +++ b/test/sql/drop-table.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -15,7 +15,7 @@ box.execute("CREATE TABLE zzzoobar (c1 INT, c2 INT PRIMARY KEY, c3 TEXT, c4 INT)
>  - row_count: 1
>  ...
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zzzoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zzzoobar VALUES (111, 222, 'c3', 444)")
>  box.execute("CREATE INDEX zb ON zzzoobar(c1, c3)")
>  ---
>  - row_count: 1
> diff --git a/test/sql/drop-table.test.lua b/test/sql/drop-table.test.lua
> index a310db1..f0b1645 100644
> --- a/test/sql/drop-table.test.lua
> +++ b/test/sql/drop-table.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- box.cfg()
>  
> @@ -8,7 +8,7 @@ box.execute('pragma sql_default_engine=\''..engine..'\'')
>  box.execute("CREATE TABLE zzzoobar (c1 INT, c2 INT PRIMARY KEY, c3 TEXT, c4 INT)")
>  
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zzzoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zzzoobar VALUES (111, 222, 'c3', 444)")
>  
>  box.execute("CREATE INDEX zb ON zzzoobar(c1, c3)")
>  
> diff --git a/test/sql/engine.result b/test/sql/engine.result
> index 3ee93ad..b392566 100644
> --- a/test/sql/engine.result
> +++ b/test/sql/engine.result
> @@ -4,7 +4,7 @@ env = require('test_run')
>  test_run = env.new()
>  ---
>  ...
> -box.execute("pragma sql_default_engine='vinyl'")
> +box.execute("set sql_default_engine='vinyl'")
>  ---
>  - row_count: 0
>  ...
> @@ -16,7 +16,7 @@ box.execute("CREATE TABLE t2_vinyl(a INT PRIMARY KEY, b INT, c INT);")
>  ---
>  - row_count: 1
>  ...
> -box.execute("pragma sql_default_engine='memtx'")
> +box.execute("set sql_default_engine='memtx'")
>  ---
>  - row_count: 0
>  ...
> @@ -66,7 +66,7 @@ assert(box.space.T1_MEMTX.engine == 'memtx')
>  ---
>  - true
>  ...
> -box.execute("pragma sql_default_engine='vinyl'")
> +box.execute("set sql_default_engine='vinyl'")
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/engine.test.lua b/test/sql/engine.test.lua
> index 112d3d3..bc16cc0 100644
> --- a/test/sql/engine.test.lua
> +++ b/test/sql/engine.test.lua
> @@ -1,11 +1,11 @@
>  env = require('test_run')
>  test_run = env.new()
>  
> -box.execute("pragma sql_default_engine='vinyl'")
> +box.execute("set sql_default_engine='vinyl'")
>  box.execute("CREATE TABLE t1_vinyl(a INT PRIMARY KEY, b INT, c INT);")
>  box.execute("CREATE TABLE t2_vinyl(a INT PRIMARY KEY, b INT, c INT);")
>  
> -box.execute("pragma sql_default_engine='memtx'")
> +box.execute("set sql_default_engine='memtx'")
>  box.execute("CREATE TABLE t3_memtx(a INT PRIMARY KEY, b INT, c INT);")
>  
>  assert(box.space.T1_VINYL.engine == 'vinyl')
> @@ -22,7 +22,7 @@ box.execute("CREATE TABLE t1_vinyl (id INT PRIMARY KEY) WITH ENGINE = 'vinyl'")
>  assert(box.space.T1_VINYL.engine == 'vinyl')
>  box.execute("CREATE TABLE t1_memtx (id INT PRIMARY KEY) WITH ENGINE = 'memtx'")
>  assert(box.space.T1_MEMTX.engine == 'memtx')
> -box.execute("pragma sql_default_engine='vinyl'")
> +box.execute("set sql_default_engine='vinyl'")
>  box.execute("CREATE TABLE t2_vinyl (id INT PRIMARY KEY) WITH ENGINE = 'vinyl'")
>  assert(box.space.T2_VINYL.engine == 'vinyl')
>  box.execute("CREATE TABLE t2_memtx (id INT PRIMARY KEY) WITH ENGINE = 'memtx'")
> diff --git a/test/sql/errinj.result b/test/sql/errinj.result
> index 7ab522f..c94afae 100644
> --- a/test/sql/errinj.result
> +++ b/test/sql/errinj.result
> @@ -7,7 +7,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/errinj.test.lua b/test/sql/errinj.test.lua
> index b978767..d21629d 100644
> --- a/test/sql/errinj.test.lua
> +++ b/test/sql/errinj.test.lua
> @@ -1,7 +1,7 @@
>  remote = require('net.box')
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  errinj = box.error.injection
>  fiber = require('fiber')
>  
> diff --git a/test/sql/func-recreate.result b/test/sql/func-recreate.result
> index a0a67a1..6083d19 100644
> --- a/test/sql/func-recreate.result
> +++ b/test/sql/func-recreate.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/func-recreate.test.lua b/test/sql/func-recreate.test.lua
> index 0b32ea9..a819587 100644
> --- a/test/sql/func-recreate.test.lua
> +++ b/test/sql/func-recreate.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- Check errors during function create process
>  fiber = require('fiber')
> diff --git a/test/sql/gh-2362-select-access-rights.result b/test/sql/gh-2362-select-access-rights.result
> index b15b0da..f929914 100644
> --- a/test/sql/gh-2362-select-access-rights.result
> +++ b/test/sql/gh-2362-select-access-rights.result
> @@ -7,7 +7,7 @@ engine = test_run:get_cfg('engine')
>  nb = require('net.box')
>  ---
>  ...
> -box.execute("PRAGMA sql_default_engine='"..engine.."'")
> +box.execute("SET sql_default_engine='"..engine.."'")
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh-2362-select-access-rights.test.lua b/test/sql/gh-2362-select-access-rights.test.lua
> index f2b66b6..5666b68 100644
> --- a/test/sql/gh-2362-select-access-rights.test.lua
> +++ b/test/sql/gh-2362-select-access-rights.test.lua
> @@ -2,7 +2,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  nb = require('net.box')
>  
> -box.execute("PRAGMA sql_default_engine='"..engine.."'")
> +box.execute("SET sql_default_engine='"..engine.."'")
>  box.execute("CREATE TABLE t1 (s1 INT PRIMARY KEY, s2 INT UNIQUE);")
>  box.execute("CREATE TABLE t2 (s1 INT PRIMARY KEY);")
>  box.execute("INSERT INTO t1 VALUES (1, 1);")
> diff --git a/test/sql/gh-2929-primary-key.result b/test/sql/gh-2929-primary-key.result
> index 021d037..35daaf2 100644
> --- a/test/sql/gh-2929-primary-key.result
> +++ b/test/sql/gh-2929-primary-key.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh-2929-primary-key.test.lua b/test/sql/gh-2929-primary-key.test.lua
> index 9cc6cd5..f419668 100644
> --- a/test/sql/gh-2929-primary-key.test.lua
> +++ b/test/sql/gh-2929-primary-key.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- All tables in SQL are now WITHOUT ROW ID, so if user
>  -- tries to create table without a primary key, an appropriate error message
> diff --git a/test/sql/gh-2981-check-autoinc.result b/test/sql/gh-2981-check-autoinc.result
> index d2938cd..11fed1e 100644
> --- a/test/sql/gh-2981-check-autoinc.result
> +++ b/test/sql/gh-2981-check-autoinc.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh-2981-check-autoinc.test.lua b/test/sql/gh-2981-check-autoinc.test.lua
> index 0eb8f73..afbefa0 100644
> --- a/test/sql/gh-2981-check-autoinc.test.lua
> +++ b/test/sql/gh-2981-check-autoinc.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  box.cfg{}
>  
> diff --git a/test/sql/gh-3199-no-mem-leaks.result b/test/sql/gh-3199-no-mem-leaks.result
> index e7ba1d2..00211ce 100644
> --- a/test/sql/gh-3199-no-mem-leaks.result
> +++ b/test/sql/gh-3199-no-mem-leaks.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh-3199-no-mem-leaks.test.lua b/test/sql/gh-3199-no-mem-leaks.test.lua
> index 54a6ce5..f63bedf 100644
> --- a/test/sql/gh-3199-no-mem-leaks.test.lua
> +++ b/test/sql/gh-3199-no-mem-leaks.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  fiber = require('fiber')
>  
>  -- This test checks that no leaks of region memory happens during
> diff --git a/test/sql/gh-3613-idx-alter-update-2.result b/test/sql/gh-3613-idx-alter-update-2.result
> index ff63eb2..270f961 100644
> --- a/test/sql/gh-3613-idx-alter-update-2.result
> +++ b/test/sql/gh-3613-idx-alter-update-2.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh-3613-idx-alter-update-2.test.lua b/test/sql/gh-3613-idx-alter-update-2.test.lua
> index ff5b651..33730ff 100644
> --- a/test/sql/gh-3613-idx-alter-update-2.test.lua
> +++ b/test/sql/gh-3613-idx-alter-update-2.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  box.execute('CREATE TABLE t (s1 INT PRIMARY KEY)')
>  box.execute('CREATE INDEX i ON t (s1)')
> diff --git a/test/sql/gh-3613-idx-alter-update.result b/test/sql/gh-3613-idx-alter-update.result
> index ba323a6..34b4a1f 100644
> --- a/test/sql/gh-3613-idx-alter-update.result
> +++ b/test/sql/gh-3613-idx-alter-update.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh-3613-idx-alter-update.test.lua b/test/sql/gh-3613-idx-alter-update.test.lua
> index 3027182..389a99d 100644
> --- a/test/sql/gh-3613-idx-alter-update.test.lua
> +++ b/test/sql/gh-3613-idx-alter-update.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  box.execute('CREATE TABLE t (s1 INT PRIMARY KEY)')
>  box.execute('CREATE INDEX i ON t (s1)')
> diff --git a/test/sql/gh-3888-values-blob-assert.result b/test/sql/gh-3888-values-blob-assert.result
> index 4b8e7ed..5691e70 100644
> --- a/test/sql/gh-3888-values-blob-assert.result
> +++ b/test/sql/gh-3888-values-blob-assert.result
> @@ -10,7 +10,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh-3888-values-blob-assert.test.lua b/test/sql/gh-3888-values-blob-assert.test.lua
> index 0b7c385..9680aa5 100644
> --- a/test/sql/gh-3888-values-blob-assert.test.lua
> +++ b/test/sql/gh-3888-values-blob-assert.test.lua
> @@ -6,7 +6,7 @@
>  --
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- check 'VALUES' against typedef keywords (should fail)
>  box.execute('VALUES(scalar)')
> diff --git a/test/sql/gh2141-delete-trigger-drop-table.result b/test/sql/gh2141-delete-trigger-drop-table.result
> index 1d373f5..a218328 100644
> --- a/test/sql/gh2141-delete-trigger-drop-table.result
> +++ b/test/sql/gh2141-delete-trigger-drop-table.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh2141-delete-trigger-drop-table.test.lua b/test/sql/gh2141-delete-trigger-drop-table.test.lua
> index 4d21fd7..2d5b987 100644
> --- a/test/sql/gh2141-delete-trigger-drop-table.test.lua
> +++ b/test/sql/gh2141-delete-trigger-drop-table.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- create space
>  box.execute("CREATE TABLE t(id INT PRIMARY KEY)")
> diff --git a/test/sql/gh2251-multiple-update.result b/test/sql/gh2251-multiple-update.result
> index 42ebf7f..7a21cea 100644
> --- a/test/sql/gh2251-multiple-update.result
> +++ b/test/sql/gh2251-multiple-update.result
> @@ -5,7 +5,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh2251-multiple-update.test.lua b/test/sql/gh2251-multiple-update.test.lua
> index 4d55096..eeff047 100644
> --- a/test/sql/gh2251-multiple-update.test.lua
> +++ b/test/sql/gh2251-multiple-update.test.lua
> @@ -1,7 +1,7 @@
>  -- Regression test for #2251
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- box.cfg()
>  
> diff --git a/test/sql/gh2483-remote-persistency-check.result b/test/sql/gh2483-remote-persistency-check.result
> index d69fcbd..a7dd7d2 100644
> --- a/test/sql/gh2483-remote-persistency-check.result
> +++ b/test/sql/gh2483-remote-persistency-check.result
> @@ -8,7 +8,7 @@ test_run = env.new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh2483-remote-persistency-check.test.lua b/test/sql/gh2483-remote-persistency-check.test.lua
> index 7db1602..bf2fc6b 100644
> --- a/test/sql/gh2483-remote-persistency-check.test.lua
> +++ b/test/sql/gh2483-remote-persistency-check.test.lua
> @@ -2,7 +2,7 @@
>  env = require('test_run')
>  test_run = env.new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  box.schema.user.grant('guest', 'read,write,execute', 'universe')
>  
> diff --git a/test/sql/gh2808-inline-unique-persistency-check.result b/test/sql/gh2808-inline-unique-persistency-check.result
> index a277b3f..db03feb 100644
> --- a/test/sql/gh2808-inline-unique-persistency-check.result
> +++ b/test/sql/gh2808-inline-unique-persistency-check.result
> @@ -8,7 +8,7 @@ test_run = env.new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/gh2808-inline-unique-persistency-check.test.lua b/test/sql/gh2808-inline-unique-persistency-check.test.lua
> index 26b646a..ef38ae3 100644
> --- a/test/sql/gh2808-inline-unique-persistency-check.test.lua
> +++ b/test/sql/gh2808-inline-unique-persistency-check.test.lua
> @@ -2,7 +2,7 @@
>  env = require('test_run')
>  test_run = env.new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- Create a table and insert a datum
>  box.execute([[CREATE TABLE t1(a INT PRIMARY KEY, b INT, UNIQUE(b));]])
> diff --git a/test/sql/icu-upper-lower.result b/test/sql/icu-upper-lower.result
> index 8ff7528..cb687a1 100644
> --- a/test/sql/icu-upper-lower.result
> +++ b/test/sql/icu-upper-lower.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/icu-upper-lower.test.lua b/test/sql/icu-upper-lower.test.lua
> index 00e9699..bbd4f00 100644
> --- a/test/sql/icu-upper-lower.test.lua
> +++ b/test/sql/icu-upper-lower.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  test_run:cmd("setopt delimiter ';'")
>  
> diff --git a/test/sql/insert-unique.result b/test/sql/insert-unique.result
> index 1cf44c9..ec57681 100644
> --- a/test/sql/insert-unique.result
> +++ b/test/sql/insert-unique.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -19,7 +19,7 @@ box.execute("CREATE UNIQUE INDEX zoobar2 ON zoobar(c1, c4)")
>  - row_count: 1
>  ...
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  -- Seed entry
>  box.execute("INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  ---
> diff --git a/test/sql/insert-unique.test.lua b/test/sql/insert-unique.test.lua
> index 026bc9d..243333e 100644
> --- a/test/sql/insert-unique.test.lua
> +++ b/test/sql/insert-unique.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- box.cfg()
>  
> @@ -9,7 +9,7 @@ box.execute("CREATE TABLE zoobar (c1 INT, c2 INT PRIMARY KEY, c3 TEXT, c4 INT)")
>  box.execute("CREATE UNIQUE INDEX zoobar2 ON zoobar(c1, c4)")
>  
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  
>  -- Seed entry
>  box.execute("INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> diff --git a/test/sql/integer-overflow.result b/test/sql/integer-overflow.result
> index 223ba02..c886f8c 100644
> --- a/test/sql/integer-overflow.result
> +++ b/test/sql/integer-overflow.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/integer-overflow.test.lua b/test/sql/integer-overflow.test.lua
> index 1b3e8ce..57929e2 100644
> --- a/test/sql/integer-overflow.test.lua
> +++ b/test/sql/integer-overflow.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- gh-3735: make sure that integer overflows errors are
>  -- handled during VDBE execution.
> diff --git a/test/sql/iproto.result b/test/sql/iproto.result
> index ffc7cd9..38f9789 100644
> --- a/test/sql/iproto.result
> +++ b/test/sql/iproto.result
> @@ -7,7 +7,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/iproto.test.lua b/test/sql/iproto.test.lua
> index b5ec2c0..d31fb7f 100644
> --- a/test/sql/iproto.test.lua
> +++ b/test/sql/iproto.test.lua
> @@ -1,7 +1,7 @@
>  remote = require('net.box')
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  box.execute('create table test (id int primary key, a NUMBER, b text)')
>  space = box.space.TEST
> diff --git a/test/sql/max-on-index.result b/test/sql/max-on-index.result
> index 57ce95b..45f29fd 100644
> --- a/test/sql/max-on-index.result
> +++ b/test/sql/max-on-index.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -25,7 +25,7 @@ box.execute("CREATE TABLE test2 (f1 INT, f2 INT, PRIMARY KEY(f1))")
>  - row_count: 1
>  ...
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  -- Seed entries
>  box.execute("INSERT INTO test1 VALUES(1, 2)");
>  ---
> diff --git a/test/sql/max-on-index.test.lua b/test/sql/max-on-index.test.lua
> index 4cceaa7..73e4199 100644
> --- a/test/sql/max-on-index.test.lua
> +++ b/test/sql/max-on-index.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- box.cfg()
>  
> @@ -13,7 +13,7 @@ box.execute("CREATE INDEX test1_index ON test1 (f2)")
>  box.execute("CREATE TABLE test2 (f1 INT, f2 INT, PRIMARY KEY(f1))")
>  
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  
>  -- Seed entries
>  box.execute("INSERT INTO test1 VALUES(1, 2)");
> diff --git a/test/sql/message-func-indexes.result b/test/sql/message-func-indexes.result
> index 69e3ee0..d198e14 100644
> --- a/test/sql/message-func-indexes.result
> +++ b/test/sql/message-func-indexes.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/message-func-indexes.test.lua b/test/sql/message-func-indexes.test.lua
> index 9ac5f47..dc67606 100644
> --- a/test/sql/message-func-indexes.test.lua
> +++ b/test/sql/message-func-indexes.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- Creating tables.
>  box.execute("CREATE TABLE t1(id INTEGER PRIMARY KEY, a INTEGER)")
> diff --git a/test/sql/misc.result b/test/sql/misc.result
> index a157ddb..b06ac57 100644
> --- a/test/sql/misc.result
> +++ b/test/sql/misc.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/misc.test.lua b/test/sql/misc.test.lua
> index 541660c..e581b73 100644
> --- a/test/sql/misc.test.lua
> +++ b/test/sql/misc.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- Forbid multistatement queries.
>  box.execute('select 1;')
> diff --git a/test/sql/no-pk-space.result b/test/sql/no-pk-space.result
> index 025f363..d0274ea 100644
> --- a/test/sql/no-pk-space.result
> +++ b/test/sql/no-pk-space.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/no-pk-space.test.lua b/test/sql/no-pk-space.test.lua
> index 318c2ac..f451b57 100644
> --- a/test/sql/no-pk-space.test.lua
> +++ b/test/sql/no-pk-space.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  format = {}
>  format[1] = {'id', 'integer'}
> diff --git a/test/sql/on-conflict.result b/test/sql/on-conflict.result
> index 6851e21..c0bb802 100644
> --- a/test/sql/on-conflict.result
> +++ b/test/sql/on-conflict.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/on-conflict.test.lua b/test/sql/on-conflict.test.lua
> index 1aa4d1b..958303e 100644
> --- a/test/sql/on-conflict.test.lua
> +++ b/test/sql/on-conflict.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  --
>  -- Check that original sql ON CONFLICT clause is really
>  -- disabled.
> diff --git a/test/sql/persistency.result b/test/sql/persistency.result
> index f8f992c..88778ec 100644
> --- a/test/sql/persistency.result
> +++ b/test/sql/persistency.result
> @@ -7,7 +7,7 @@ test_run = env.new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/persistency.test.lua b/test/sql/persistency.test.lua
> index 1964453..72d1992 100644
> --- a/test/sql/persistency.test.lua
> +++ b/test/sql/persistency.test.lua
> @@ -1,7 +1,7 @@
>  env = require('test_run')
>  test_run = env.new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- create space
>  box.execute("CREATE TABLE foobar (foo INT PRIMARY KEY, bar TEXT)")
> diff --git a/test/sql/row-count.result b/test/sql/row-count.result
> index 6bf74ed..dd898aa 100644
> --- a/test/sql/row-count.result
> +++ b/test/sql/row-count.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -314,13 +314,13 @@ box.execute("SELECT ROW_COUNT();")
>    rows:
>    - [0]
>  ...
> -box.execute('PRAGMA recursive_triggers')
> +box.execute([[SELECT "value" FROM "_vsession_settings" WHERE "name" = 'sql_recursive_triggers';]])
>  ---
>  - metadata:
> -  - name: recursive_triggers
> -    type: integer
> +  - name: value
> +    type: any
>    rows:
> -  - [1]
> +  - [true]
>  ...
>  -- Clean-up.
>  --
> diff --git a/test/sql/row-count.test.lua b/test/sql/row-count.test.lua
> index 369e7fa..f5a9820 100644
> --- a/test/sql/row-count.test.lua
> +++ b/test/sql/row-count.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- Test cases concerning row count calculations.
>  --
> @@ -65,7 +65,7 @@ box.execute("SELECT ROW_COUNT();")
>  box.execute("SELECT ROW_COUNT();")
>  box.execute("EXPLAIN QUERY PLAN INSERT INTO t1 VALUES ('b'), ('c'), ('d');")
>  box.execute("SELECT ROW_COUNT();")
> -box.execute('PRAGMA recursive_triggers')
> +box.execute([[SELECT "value" FROM "_vsession_settings" WHERE "name" = 'sql_recursive_triggers';]])
>  
>  -- Clean-up.
>  --
> diff --git a/test/sql/savepoints.result b/test/sql/savepoints.result
> index e48db30..a111e26 100644
> --- a/test/sql/savepoints.result
> +++ b/test/sql/savepoints.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/savepoints.test.lua b/test/sql/savepoints.test.lua
> index 99622a4..0af67a9 100644
> --- a/test/sql/savepoints.test.lua
> +++ b/test/sql/savepoints.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- These tests check that SQL savepoints properly work outside
>  -- transactions as well as inside transactions started in Lua.
> diff --git a/test/sql/select-null.result b/test/sql/select-null.result
> index 83d9776..bd25f03 100644
> --- a/test/sql/select-null.result
> +++ b/test/sql/select-null.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -15,7 +15,7 @@ box.execute("CREATE TABLE t3(id INT, a text, b TEXT, PRIMARY KEY(id))")
>  - row_count: 1
>  ...
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  -- Seed entries
>  box.execute("INSERT INTO t3 VALUES(1, 'abc',NULL)");
>  ---
> diff --git a/test/sql/select-null.test.lua b/test/sql/select-null.test.lua
> index a49eb43..9f54048 100644
> --- a/test/sql/select-null.test.lua
> +++ b/test/sql/select-null.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- box.cfg()
>  
> @@ -8,7 +8,7 @@ box.execute('pragma sql_default_engine=\''..engine..'\'')
>  box.execute("CREATE TABLE t3(id INT, a text, b TEXT, PRIMARY KEY(id))")
>  
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  
>  -- Seed entries
>  box.execute("INSERT INTO t3 VALUES(1, 'abc',NULL)");
> diff --git a/test/sql/sql-debug.result b/test/sql/sql-debug.result
> index 4102b1a..e2d60a9 100644
> --- a/test/sql/sql-debug.result
> +++ b/test/sql/sql-debug.result
> @@ -5,50 +5,130 @@ test_run = require('test_run').new()
>  ---
>  ...
>  --
> --- gh-3832: Some statements do not return column type
> --- Check that "PRAGMA parser_trace" returns 0 or 1 if called
> --- without parameter.
> -result = box.execute('PRAGMA parser_trace').rows
> +-- gh-4511: make sure that SET works.
> +--
> +box.execute('SELECT "name" FROM "_vsession_settings";')
> +---
> +- metadata:
> +  - name: name
> +    type: string
> +  rows:
> +  - ['sql_default_engine']
> +  - ['sql_defer_foreign_keys']
> +  - ['sql_full_column_names']
> +  - ['sql_parser_trace']
> +  - ['sql_recursive_triggers']
> +  - ['sql_reverse_unordered_selects']
> +  - ['sql_select_trace']
> +  - ['sql_trace']
> +  - ['sql_vdbe_addoptrace']
> +  - ['sql_vdbe_debug']
> +  - ['sql_vdbe_eqp']
> +  - ['sql_vdbe_listing']
> +  - ['sql_vdbe_trace']
> +  - ['sql_where_trace']
> +...
> +engine = box.space._vsession_settings:get{'sql_default_engine'}.value
> +---
> +...
> +order = box.space._vsession_settings:get{'sql_reverse_unordered_selects'}.value
> +---
> +...
> +box.execute('SET sql_default_engine = 1;')
> +---
> +- null
> +- 'Inconsistent types: expected string got integer'
> +...
> +box.execute("SET sql_default_engine = 'some_engine';")
> +---
> +- null
> +- Space engine 'some_engine' does not exist
> +...
> +box.execute("SET engine = 'vinyl';")
> +---
> +- null
> +- Setting is not found
> +...
> +box.execute("SET sql_defer_foreign_keys = 'vinyl';")
> +---
> +- null
> +- 'Inconsistent types: expected boolean got string'
> +...
> +engine == box.space._vsession_settings:get{'sql_default_engine'}.value
>  ---
> +- true
>  ...
> -box.execute('PRAGMA parser_trace = 1')
> +order == box.space._vsession_settings:get{'sql_reverse_unordered_selects'}.value
> +---
> +- true
> +...
> +box.execute("SET sql_default_engine = 'vinyl';")
> +---
> +- row_count: 0
> +...
> +box.execute("SET sql_reverse_unordered_selects = true;")
>  ---
>  - row_count: 0
>  ...
> -box.execute('PRAGMA parser_trace')
> +box.execute('SELECT * FROM "_vsession_settings";')
>  ---
>  - metadata:
> -  - name: parser_trace
> -    type: integer
> +  - name: name
> +    type: string
> +  - name: value
> +    type: any
>    rows:
> -  - [1]
> +  - ['sql_where_trace', false]
> +  - ['sql_vdbe_trace', false]
> +  - ['sql_vdbe_listing', false]
> +  - ['sql_vdbe_eqp', false]
> +  - ['sql_vdbe_debug', false]
> +  - ['sql_vdbe_addoptrace', false]
> +  - ['sql_trace', false]
> +  - ['sql_select_trace', false]
> +  - ['sql_reverse_unordered_selects', true]
> +  - ['sql_recursive_triggers', true]
> +  - ['sql_parser_trace', false]
> +  - ['sql_full_column_names', false]
> +  - ['sql_defer_foreign_keys', false]
> +  - ['sql_default_engine', 'vinyl']
>  ...
> -box.execute('PRAGMA parser_trace = '.. result[1][1])
> +box.execute("SET sql_default_engine = 'memtx';")
>  ---
>  - row_count: 0
>  ...
> ---
> --- Make PRAGMA command return the result as a result set.
> ---
> -box.execute('PRAGMA')
> +box.execute("SET sql_reverse_unordered_selects = false;")
> +---
> +- row_count: 0
> +...
> +box.execute('SELECT * FROM "_vsession_settings";')
>  ---
>  - metadata:
> -  - name: pragma_name
> -    type: text
> -  - name: pragma_value
> -    type: integer
> +  - name: name
> +    type: string
> +  - name: value
> +    type: any
>    rows:
> -  - ['defer_foreign_keys', 0]
> -  - ['full_column_names', 0]
> -  - ['parser_trace', 0]
> -  - ['recursive_triggers', 1]
> -  - ['reverse_unordered_selects', 0]
> -  - ['select_trace', 0]
> -  - ['sql_trace', 0]
> -  - ['vdbe_addoptrace', 0]
> -  - ['vdbe_debug', 0]
> -  - ['vdbe_eqp', 0]
> -  - ['vdbe_listing', 0]
> -  - ['vdbe_trace', 0]
> -  - ['where_trace', 0]
> +  - ['sql_default_engine', 'memtx']
> +  - ['sql_defer_foreign_keys', false]
> +  - ['sql_full_column_names', false]
> +  - ['sql_parser_trace', false]
> +  - ['sql_recursive_triggers', true]
> +  - ['sql_reverse_unordered_selects', false]
> +  - ['sql_select_trace', false]
> +  - ['sql_trace', false]
> +  - ['sql_vdbe_addoptrace', false]
> +  - ['sql_vdbe_debug', false]
> +  - ['sql_vdbe_eqp', false]
> +  - ['sql_vdbe_listing', false]
> +  - ['sql_vdbe_trace', false]
> +  - ['sql_where_trace', false]
> +...
> +box.execute("SET sql_default_engine = '"..engine.."';")
> +---
> +- row_count: 0
> +...
> +box.execute("SET sql_reverse_unordered_selects = "..tostring(order)..";")
> +---
> +- row_count: 0
>  ...
> diff --git a/test/sql/sql-debug.test.lua b/test/sql/sql-debug.test.lua
> index edd0ef4..b15deee 100644
> --- a/test/sql/sql-debug.test.lua
> +++ b/test/sql/sql-debug.test.lua
> @@ -2,16 +2,27 @@ remote = require('net.box')
>  test_run = require('test_run').new()
>  
>  --
> --- gh-3832: Some statements do not return column type
> +-- gh-4511: make sure that SET works.
> +--
> +box.execute('SELECT "name" FROM "_vsession_settings";')
>  
> --- Check that "PRAGMA parser_trace" returns 0 or 1 if called
> --- without parameter.
> -result = box.execute('PRAGMA parser_trace').rows
> -box.execute('PRAGMA parser_trace = 1')
> -box.execute('PRAGMA parser_trace')
> -box.execute('PRAGMA parser_trace = '.. result[1][1])
> +engine = box.space._vsession_settings:get{'sql_default_engine'}.value
> +order = box.space._vsession_settings:get{'sql_reverse_unordered_selects'}.value
>  
> ---
> --- Make PRAGMA command return the result as a result set.
> ---
> -box.execute('PRAGMA')
> +box.execute('SET sql_default_engine = 1;')
> +box.execute("SET sql_default_engine = 'some_engine';")
> +box.execute("SET engine = 'vinyl';")
> +box.execute("SET sql_defer_foreign_keys = 'vinyl';")
> +engine == box.space._vsession_settings:get{'sql_default_engine'}.value
> +order == box.space._vsession_settings:get{'sql_reverse_unordered_selects'}.value
> +
> +box.execute("SET sql_default_engine = 'vinyl';")
> +box.execute("SET sql_reverse_unordered_selects = true;")
> +box.execute('SELECT * FROM "_vsession_settings";')
> +
> +box.execute("SET sql_default_engine = 'memtx';")
> +box.execute("SET sql_reverse_unordered_selects = false;")
> +box.execute('SELECT * FROM "_vsession_settings";')
> +
> +box.execute("SET sql_default_engine = '"..engine.."';")
> +box.execute("SET sql_reverse_unordered_selects = "..tostring(order)..";")
> diff --git a/test/sql/sql-statN-index-drop.result b/test/sql/sql-statN-index-drop.result
> index b2a4458..cf0f6f4 100644
> --- a/test/sql/sql-statN-index-drop.result
> +++ b/test/sql/sql-statN-index-drop.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/sql-statN-index-drop.test.lua b/test/sql/sql-statN-index-drop.test.lua
> index 5477a2a..5f9cc68 100644
> --- a/test/sql/sql-statN-index-drop.test.lua
> +++ b/test/sql/sql-statN-index-drop.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- Initializing some things.
>  box.execute("CREATE TABLE t1(id INT PRIMARY KEY, a INT);")
> diff --git a/test/sql/tokenizer.result b/test/sql/tokenizer.result
> index 1ae9ef2..07a7c41 100644
> --- a/test/sql/tokenizer.result
> +++ b/test/sql/tokenizer.result
> @@ -7,7 +7,7 @@ test_run = env.new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/tokenizer.test.lua b/test/sql/tokenizer.test.lua
> index 3f5dd12..15cf658 100644
> --- a/test/sql/tokenizer.test.lua
> +++ b/test/sql/tokenizer.test.lua
> @@ -1,7 +1,7 @@
>  env = require('test_run')
>  test_run = env.new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  sql_tokenizer = require('sql_tokenizer')
>  
> diff --git a/test/sql/transition.result b/test/sql/transition.result
> index 9738092..35e7af6 100644
> --- a/test/sql/transition.result
> +++ b/test/sql/transition.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/transition.test.lua b/test/sql/transition.test.lua
> index a05c26a..9b8b868 100644
> --- a/test/sql/transition.test.lua
> +++ b/test/sql/transition.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- create space
>  box.execute("CREATE TABLE foobar (foo INT PRIMARY KEY, bar TEXT)")
> diff --git a/test/sql/transitive-transactions.result b/test/sql/transitive-transactions.result
> index 29c7316..17311ee 100644
> --- a/test/sql/transitive-transactions.result
> +++ b/test/sql/transitive-transactions.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute("pragma sql_default_engine=\'"..engine.."\'")
> +box.execute("set sql_default_engine=\'"..engine.."\'")
>  ---
>  - row_count: 0
>  ...
> @@ -88,7 +88,7 @@ box.space.PARENT:select();
>  ---
>  - - [1, 1]
>  ...
> --- Make sure that 'PRAGMA defer_foreign_keys' works.
> +-- Make sure that SQL option 'sql_defer_foreign_keys' works.
>  --
>  box.execute('DROP TABLE child;')
>  box.execute('CREATE TABLE child(id INT PRIMARY KEY, x INT REFERENCES parent(y))')
> @@ -116,7 +116,7 @@ box.space.PARENT:select();
>  ---
>  - - [1, 1]
>  ...
> -box.execute('PRAGMA defer_foreign_keys = 1;')
> +box.execute('SET sql_defer_foreign_keys = true;')
>  box.rollback()
>  fk_defer();
>  ---
> @@ -131,7 +131,7 @@ box.space.PARENT:select();
>    - [2, 2]
>  ...
>  -- Cleanup
> -box.execute('PRAGMA defer_foreign_keys = 0;')
> +box.execute('SET sql_defer_foreign_keys = false;')
>  
>  box.execute('DROP TABLE child;');
>  ---
> diff --git a/test/sql/transitive-transactions.test.lua b/test/sql/transitive-transactions.test.lua
> index 4633f07..3c5fecb 100644
> --- a/test/sql/transitive-transactions.test.lua
> +++ b/test/sql/transitive-transactions.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute("pragma sql_default_engine=\'"..engine.."\'")
> +box.execute("set sql_default_engine=\'"..engine.."\'")
>  test_run:cmd("setopt delimiter ';'")
>  
>  -- These tests are aimed at checking transitive transactions
> @@ -45,7 +45,7 @@ fk_violation_3();
>  box.space.CHILD:select();
>  box.space.PARENT:select();
>  
> --- Make sure that 'PRAGMA defer_foreign_keys' works.
> +-- Make sure that SQL option 'sql_defer_foreign_keys' works.
>  --
>  box.execute('DROP TABLE child;')
>  box.execute('CREATE TABLE child(id INT PRIMARY KEY, x INT REFERENCES parent(y))')
> @@ -62,13 +62,13 @@ end;
>  fk_defer();
>  box.space.CHILD:select();
>  box.space.PARENT:select();
> -box.execute('PRAGMA defer_foreign_keys = 1;')
> +box.execute('SET sql_defer_foreign_keys = true;')
>  box.rollback()
>  fk_defer();
>  box.space.CHILD:select();
>  box.space.PARENT:select();
>  
> -box.execute('PRAGMA defer_foreign_keys = 0;')
> +box.execute('SET sql_defer_foreign_keys = false;')
>  
>  -- Cleanup
>  box.execute('DROP TABLE child;');
> diff --git a/test/sql/triggers.result b/test/sql/triggers.result
> index 9dfe981..de1f074 100644
> --- a/test/sql/triggers.result
> +++ b/test/sql/triggers.result
> @@ -7,7 +7,7 @@ test_run = env.new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -292,7 +292,7 @@ box.execute("DROP TABLE T1;")
>  -- gh-3531: Assertion with trigger and two storage engines
>  --
>  -- Case 1: Src 'vinyl' table; Dst 'memtx' table
> -box.execute("PRAGMA sql_default_engine ('vinyl');")
> +box.execute("SET sql_default_engine  = 'vinyl';")
>  ---
>  - row_count: 0
>  ...
> @@ -304,7 +304,7 @@ box.execute("CREATE TRIGGER m1 BEFORE UPDATE ON m FOR EACH ROW BEGIN UPDATE n SE
>  ---
>  - row_count: 1
>  ...
> -box.execute("PRAGMA sql_default_engine('memtx');")
> +box.execute("SET sql_default_engine = 'memtx';")
>  ---
>  - row_count: 0
>  ...
> @@ -336,7 +336,7 @@ box.execute("DROP TABLE n;")
>  - row_count: 1
>  ...
>  -- Case 2: Src 'memtx' table; Dst 'vinyl' table
> -box.execute("PRAGMA sql_default_engine ('memtx');")
> +box.execute("SET sql_default_engine = 'memtx';")
>  ---
>  - row_count: 0
>  ...
> @@ -348,7 +348,7 @@ box.execute("CREATE TRIGGER m1 BEFORE UPDATE ON m FOR EACH ROW BEGIN UPDATE n SE
>  ---
>  - row_count: 1
>  ...
> -box.execute("PRAGMA sql_default_engine('vinyl');")
> +box.execute("SET sql_default_engine = 'vinyl';")
>  ---
>  - row_count: 0
>  ...
> @@ -380,7 +380,7 @@ box.execute("DROP TABLE n;")
>  - row_count: 1
>  ...
>  -- Test SQL Transaction with LUA
> -box.execute("PRAGMA sql_default_engine ('memtx');")
> +box.execute("SET sql_default_engine = 'memtx';")
>  ---
>  - row_count: 0
>  ...
> @@ -388,7 +388,7 @@ box.execute("CREATE TABLE test (id INT PRIMARY KEY)")
>  ---
>  - row_count: 1
>  ...
> -box.execute("PRAGMA sql_default_engine='vinyl'")
> +box.execute("SET sql_default_engine='vinyl'")
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/triggers.test.lua b/test/sql/triggers.test.lua
> index f0397dc..138d1c0 100644
> --- a/test/sql/triggers.test.lua
> +++ b/test/sql/triggers.test.lua
> @@ -1,7 +1,7 @@
>  env = require('test_run')
>  test_run = env.new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- Get invariant part of the tuple; name and opts don't change.
>   function immutable_part(data) local r = {} for i, l in pairs(data) do table.insert(r, {l.name, l.opts}) end return r end
> @@ -100,10 +100,10 @@ box.execute("DROP TABLE T1;")
>  -- gh-3531: Assertion with trigger and two storage engines
>  --
>  -- Case 1: Src 'vinyl' table; Dst 'memtx' table
> -box.execute("PRAGMA sql_default_engine ('vinyl');")
> +box.execute("SET sql_default_engine  = 'vinyl';")
>  box.execute("CREATE TABLE m (s0 INT PRIMARY KEY, s1 TEXT UNIQUE);")
>  box.execute("CREATE TRIGGER m1 BEFORE UPDATE ON m FOR EACH ROW BEGIN UPDATE n SET s2 = 'now'; END;")
> -box.execute("PRAGMA sql_default_engine('memtx');")
> +box.execute("SET sql_default_engine = 'memtx';")
>  box.execute("CREATE TABLE n (s0 INT PRIMARY KEY, s1 TEXT UNIQUE, s2 NUMBER);")
>  box.execute("INSERT INTO m VALUES (0, '0');")
>  box.execute("INSERT INTO n VALUES (0, '',null);")
> @@ -116,10 +116,10 @@ box.execute("DROP TABLE n;")
>  
>  
>  -- Case 2: Src 'memtx' table; Dst 'vinyl' table
> -box.execute("PRAGMA sql_default_engine ('memtx');")
> +box.execute("SET sql_default_engine = 'memtx';")
>  box.execute("CREATE TABLE m (s0 INT PRIMARY KEY, s1 TEXT UNIQUE);")
>  box.execute("CREATE TRIGGER m1 BEFORE UPDATE ON m FOR EACH ROW BEGIN UPDATE n SET s2 = 'now'; END;")
> -box.execute("PRAGMA sql_default_engine('vinyl');")
> +box.execute("SET sql_default_engine = 'vinyl';")
>  box.execute("CREATE TABLE n (s0 INT PRIMARY KEY, s1 TEXT UNIQUE, s2 NUMBER);")
>  box.execute("INSERT INTO m VALUES (0, '0');")
>  box.execute("INSERT INTO n VALUES (0, '',null);")
> @@ -131,9 +131,9 @@ box.execute("DROP TABLE m;")
>  box.execute("DROP TABLE n;")
>  
>  -- Test SQL Transaction with LUA
> -box.execute("PRAGMA sql_default_engine ('memtx');")
> +box.execute("SET sql_default_engine = 'memtx';")
>  box.execute("CREATE TABLE test (id INT PRIMARY KEY)")
> -box.execute("PRAGMA sql_default_engine='vinyl'")
> +box.execute("SET sql_default_engine='vinyl'")
>  box.execute("CREATE TABLE test2 (id INT PRIMARY KEY)")
>  box.execute("INSERT INTO test2 VALUES (2)")
>  box.execute("START TRANSACTION")
> diff --git a/test/sql/update-with-nested-select.result b/test/sql/update-with-nested-select.result
> index 3172430..b6ccda2 100644
> --- a/test/sql/update-with-nested-select.result
> +++ b/test/sql/update-with-nested-select.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> @@ -15,7 +15,7 @@ box.execute("CREATE TABLE t1(a integer primary key, b INT UNIQUE, e INT);");
>  - row_count: 1
>  ...
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  -- Seed entries
>  box.execute("INSERT INTO t1 VALUES(1,4,6);");
>  ---
> diff --git a/test/sql/update-with-nested-select.test.lua b/test/sql/update-with-nested-select.test.lua
> index 88424fc..07587ff 100644
> --- a/test/sql/update-with-nested-select.test.lua
> +++ b/test/sql/update-with-nested-select.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- box.cfg()
>  
> @@ -8,7 +8,7 @@ box.execute('pragma sql_default_engine=\''..engine..'\'')
>  box.execute("CREATE TABLE t1(a integer primary key, b INT UNIQUE, e INT);");
>  
>  -- Debug
> --- box.execute("PRAGMA vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
> +-- box.execute("SET vdbe_debug=ON ; INSERT INTO zoobar VALUES (111, 222, 'c3', 444)")
>  
>  -- Seed entries
>  box.execute("INSERT INTO t1 VALUES(1,4,6);");
> diff --git a/test/sql/upgrade.result b/test/sql/upgrade.result
> index f0997e1..6627777 100644
> --- a/test/sql/upgrade.result
> +++ b/test/sql/upgrade.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/upgrade.test.lua b/test/sql/upgrade.test.lua
> index 37425ae..0c882ba 100644
> --- a/test/sql/upgrade.test.lua
> +++ b/test/sql/upgrade.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  work_dir = 'sql/upgrade/1.10/'
>  test_run:cmd('create server upgrade with script="sql/upgrade/upgrade.lua", workdir="' .. work_dir .. '"')
> diff --git a/test/sql/view.result b/test/sql/view.result
> index d845df8..3df08fc 100644
> --- a/test/sql/view.result
> +++ b/test/sql/view.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/view.test.lua b/test/sql/view.test.lua
> index 0008056..6a1fae2 100644
> --- a/test/sql/view.test.lua
> +++ b/test/sql/view.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  
>  -- Verify that constraints on 'view' option are working.
>  
> diff --git a/test/sql/view_delayed_wal.result b/test/sql/view_delayed_wal.result
> index d518e7d..a5f64f2 100644
> --- a/test/sql/view_delayed_wal.result
> +++ b/test/sql/view_delayed_wal.result
> @@ -4,7 +4,7 @@ test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
>  ---
>  ...
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/view_delayed_wal.test.lua b/test/sql/view_delayed_wal.test.lua
> index 7e6fce6..ec93e72 100644
> --- a/test/sql/view_delayed_wal.test.lua
> +++ b/test/sql/view_delayed_wal.test.lua
> @@ -1,6 +1,6 @@
>  test_run = require('test_run').new()
>  engine = test_run:get_cfg('engine')
> -box.execute('pragma sql_default_engine=\''..engine..'\'')
> +box.execute('set sql_default_engine=\''..engine..'\'')
>  fiber = require('fiber')
>  
>  -- View reference counters are incremented before firing
> diff --git a/test/sql/vinyl-opts.result b/test/sql/vinyl-opts.result
> index 10a649a..b9e07c1 100644
> --- a/test/sql/vinyl-opts.result
> +++ b/test/sql/vinyl-opts.result
> @@ -13,7 +13,7 @@ test_run:cmd("switch test")
>  ---
>  - true
>  ...
> -box.execute('pragma sql_default_engine= \'vinyl\'')
> +box.execute('set sql_default_engine= \'vinyl\'')
>  ---
>  - row_count: 0
>  ...
> diff --git a/test/sql/vinyl-opts.test.lua b/test/sql/vinyl-opts.test.lua
> index 4460724..05864d0 100644
> --- a/test/sql/vinyl-opts.test.lua
> +++ b/test/sql/vinyl-opts.test.lua
> @@ -3,7 +3,7 @@ test_run:cmd("create server test with script='sql/vinyl-opts-cfg.lua'")
>  test_run:cmd("start server test")
>  test_run:cmd("switch test")
>  
> -box.execute('pragma sql_default_engine= \'vinyl\'')
> +box.execute('set sql_default_engine= \'vinyl\'')
>  box.execute('CREATE TABLE v1 (id INT PRIMARY KEY, b INT);')
>  box.space.V1.index[0].options
>  
> -- 
> 2.7.4

-- 
Konstantin Osipov, Moscow, Russia


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