Re: [Tarantool-patches] [PATCH v4 5/5] sql: support column addition

[Roman Khabibov <roman.habibov@tarantool.org>]

Hi! Thanks for the review.

> On Nov 6, 2020, at 18:57, Nikita Pettik <korablev@tarantool.org> wrote:
> 
> On 09 Oct 16:45, Roman Khabibov wrote:
>> diff --git a/src/box/errcode.h b/src/box/errcode.h
>> index e6957d612..5a59f477f 100644
>> --- a/src/box/errcode.h
>> +++ b/src/box/errcode.h
>> @@ -273,6 +273,8 @@ struct errcode_record {
>> 	/*218 */_(ER_TUPLE_METADATA_IS_TOO_BIG,	"Can't create tuple: metadata size %u is too big") \
>> 	/*219 */_(ER_XLOG_GAP,			"%s") \
>> 	/*220 */_(ER_TOO_EARLY_SUBSCRIBE,	"Can't subscribe non-anonymous replica %s until join is done") \
>> +	/*221 */_(ER_SQL_CANT_ADD_AUTOINC,	"Can't add AUTOINCREMENT: space %s can't feature more than one AUTOINCREMENT field") \
>> +
> 
> Extra empty line.
Removed.

>> /*
>>  * !IMPORTANT! Please follow instructions at start of the file
>> diff --git a/src/box/sql/build.c b/src/box/sql/build.c
>> index fd8e7ed1e..597608bea 100644
>> --- a/src/box/sql/build.c
>> +++ b/src/box/sql/build.c
>> @@ -285,48 +285,110 @@ sql_field_retrieve(Parse *parser, struct space_def *space_def, uint32_t id)
>> 	return field;
>> }
>> 
>> +static struct space *
>> +sql_shallow_space_copy(struct Parse *parse, struct space *space)
>> +{
>> +	assert(space->def != NULL);
>> +	struct space *ret = sql_ephemeral_space_new(parse, space->def->name);
>> +	if (ret == NULL)
>> +		goto error;
>> +	ret->index_count = space->index_count;
>> +	ret->index_id_max = space->index_id_max;
>> +	size_t size = 0;
>> +	ret->index = region_alloc_array(&parse->region, typeof(struct index *),
>> +					ret->index_count, &size);
>> +	if (ret->index == NULL) {
>> +		diag_set(OutOfMemory, size, "region_alloc_array", "ret->index");
>> +		goto error;
>> +	}
> 
> 
> You don't need all indexes from space..What you only need from space -          
> count of indexes (to generate name if it is required). The same for
> field defs. Mb it is worth avoiding copying space at all - just
> store in create_column_def list of ck/fk constraints, single
> field_def, index/field count - these objects seem to be enough.
> Please consider this suggestion.
Yes, I understand that. But unfortunately, the current code, namely
the functions for creating indexes, fk, and ck constraints, are written
in such a way that they cannot be called without struct space (ephemeral
or not). Vlad and I discussed this and came to the conclusion that it is
better to go in the direction of reusing the code, rather than rewriting
a significant part of build.c.

https://lists.tarantool.org/pipermail/tarantool-patches/2020-July/018460.html
https://lists.tarantool.org/pipermail/tarantool-patches/2020-August/019003.html

>> +
>> +	struct region *region = &parse->region;
>> +	struct Token *name = &create_column_def->base.name;
>> +	char *column_name =
>> +		sql_normalized_name_region_new(region, name->z, name->n);
>> +	if (column_name == NULL)
>> +		goto tnt_error;
>> +
>> 	/*
>> -	 * As sql_field_retrieve will allocate memory on region
>> -	 * ensure that def is also temporal and would be dropped.
>> +	 * Format can be set in Lua, then exact_field_count can be
>> +	 * zero, but field_count is not.
>> 	 */
>> -	assert(def->opts.is_ephemeral);
>> -	if (sql_field_retrieve(pParse, def, def->field_count) == NULL)
>> +	if (def->exact_field_count == 0)
>> +		def->exact_field_count = def->field_count;
> 
> assert(is_alter);
If you meant
	if (def->exact_field_count == 0) {
		assert(is_alter);
		def->exact_field_count = def->field_count;
	}
This branch is not only for alter.

>> +	struct Vdbe *v = sqlGetVdbe(parse);
>> +	assert(v != NULL);
>> +
>> +	struct space *system_space = space_by_id(BOX_SPACE_ID);
> 
> -> you can call it simply _space or s_space
Done.

>> +	assert(system_space != NULL);
>> +	int cursor = parse->nTab++;
>> +	vdbe_emit_open_cursor(parse, cursor, 0, system_space);
>> +	sqlVdbeChangeP5(v, OPFLAG_SYSTEMSP);
>> +
>> void
>> sql_column_add_nullable_action(struct Parse *parser,
>> 			       enum on_conflict_action nullable_action)
>> {
>> -	struct space *space = parser->create_table_def.new_space;
>> -	if (space == NULL || NEVER(space->def->field_count < 1))
>> +	assert(parser->create_column_def.space != NULL);
>> +	struct space_def *def = parser->create_column_def.space->def;
>> +	if (NEVER(def->field_count < 1))
>> 		return;
> 
> Let's use standard facilities: assert(def->field_count > 0);
Done.

 void
 sql_column_add_nullable_action(struct Parse *parser,
 			       enum on_conflict_action nullable_action)
 {
-	struct space *space = parser->create_table_def.new_space;
-	if (space == NULL || NEVER(space->def->field_count < 1))
-		return;
-	struct space_def *def = space->def;
+	assert(parser->create_column_def.space != NULL);
+	struct space_def *def = parser->create_column_def.space->def;
+	assert(def->field_count > 0);
 	struct field_def *field = &def->fields[def->field_count - 1];
 	if (field->nullable_action != ON_CONFLICT_ACTION_DEFAULT &&
 	    nullable_action != field->nullable_action) {

>> 	if (space == NULL)
>> 		goto primary_key_exit;
>> 	if (sql_space_primary_key(space) != NULL) {
>> @@ -574,8 +707,10 @@ sql_create_check_contraint(struct Parse *parser)
>> 		(struct alter_entity_def *) create_ck_def;
>> 	assert(alter_def->entity_type == ENTITY_TYPE_CK);
>> 	(void) alter_def;
>> -	struct space *space = parser->create_table_def.new_space;
>> -	bool is_alter = space == NULL;
>> +	struct space *space = parser->create_column_def.space;
> 
> Consider tiny refactoring:
> 
> is_alter = space == NULL;
> if (is_alter)
> 	space = ...
> assert(space != NULL);
In my case it will be:

struct space *space = parser->create_column_def.space;
bool is_alter_add_constr = space == NULL &&
			   parser->create_table_def.new_space == NULL;
if (!is_alter_add_constr)
	space = parser->parser->create_table_def.new_space;

This results in more rows than there are now.

>> +	if (space == NULL)
>> +		space = parser->create_table_def.new_space;
>> +	bool is_alter_add_constr = space == NULL;
>> 
>> -		assert(! is_alter);
>> +		assert(!is_alter_add_constr);
> 
> What's the point of this renaming?
I need to distinguish between <CREATE TABLE>, <ALTER TABLE ADD COLUMN>
and <ALTER TABLE ADD CONSTRAINT> branches.

> 
>> 		uint32_t ck_idx = ++parser->create_checks_def.count;
>> +		/*
>> @@ -1149,15 +1302,28 @@ resolve_link(struct Parse *parse_context, const struct space_def *def,
>> 
>> /**
>>  * Emit code to create sequences, indexes, check and foreign key
>> - * constraints appeared in <CREATE TABLE>.
>> + * constraints appeared in <CREATE TABLE> or
>> + * <ALTER TABLE ADD COLUMN>.
>>  */
>> static void
>> vdbe_emit_create_constraints(struct Parse *parse, int reg_space_id)
>> {
>> 	assert(reg_space_id != 0);
>> 	struct space *space = parse->create_table_def.new_space;
>> -	assert(space != NULL);
>> +	bool is_alter = space == NULL;
>> 	uint32_t i = 0;
>> +	/*
>> +	 * If it is an <ALTER TABLE ADD COLUMN>, then we have to
>> +	 * create all indexes added by this statement. These
> 
> AFAIK only one index (corresponding to unique constraint).
I can write any number of named unique constraints. They should be
created.
ALTER TABLE t ADD COLUMN a INT CONSTRAINT c_1 UNIQUE, CONSTRAINT c_2 UNIQUE …

>                      
> 
>> +	 * indexes are in the array, starting with old index_count
>> +	 * (inside space object) and ending with new index_count
>> +	 * (inside ephemeral space).
>> +	 */
>> +	if (is_alter) {
>> +		space = parse->create_column_def.space;
>> +		i = space_by_name(space->def->name)->index_count;
>> +	}
>> @@ -1176,6 +1342,21 @@ vdbe_emit_create_constraints(struct Parse *parse, int reg_space_id)
>> 		sqlVdbeAddOp2(v, OP_NextSequenceId, 0, reg_seq_id);
>> 		int reg_seq_rec = emitNewSysSequenceRecord(parse, reg_seq_id,
>> 							   space->def->name);
>> +		if (is_alter) {
>> +			int errcode = ER_SQL_CANT_ADD_AUTOINC;
>> +			const char *error_msg =
>> +				tt_sprintf(tnt_errcode_desc(errcode),
>> +					   space->def->name);
>> +			if (vdbe_emit_halt_with_presence_test(parse,
>> +							      BOX_SEQUENCE_ID,
>> +							      2,
>> +							      reg_seq_rec + 3,
>> +							      1, errcode,
>> +							      error_msg, false,
>> +							      OP_NoConflict)
>> +			    != 0)
> 
> Oh please leave !=0 cond on previous line. This way looks disgusting.
Done.

>> +				return;
>> +		}
>> 		sqlVdbeAddOp2(v, OP_SInsert, BOX_SEQUENCE_ID, reg_seq_rec);
>> 		/* Do an insertion into _space_sequence. */
>> 		int reg_space_seq_record =
>> +	 * CONSTRAINT> statement handling.
>> 	 */
>> -	bool is_alter = space == NULL;
>> +	bool is_alter_add_constr = space == NULL;
> 
> Again, what's the point of this renaming?

commit d00ac8986bd37d5234e7d3889cb6f77216c1d33c
Author: Roman Khabibov <roman.habibov@tarantool.org>
Date:   Thu Jan 2 19:06:14 2020 +0300

    sql: support column addition
    
    Enable to add column to existing space with
    <ALTER TABLE ADD [COLUMN]> statement. Column definition can be
    supplemented with the four types of constraints, <DEFAULT>,
    <COLLATE> clauses and <[NOT] NULL>, AUTOINCREMENT.
    
    Closes #2349, #3075
    
    @TarantoolBot document
    Title: Add columns to existing tables in SQL
    Now, it is possible to add columns to existing empty spaces using
    <ALTER TABLE table_name ADD [COLUMN] column_name column_type ...>
    statement. The column definition is the same as in <CREATE TABLE>
    statement.
    
    * Space emptiness is Tarantool's restriction. Possibilty to add
    column to non empty space will be implemented later.
    
    For example:
    
    ```
    tarantool> box.execute("CREATE TABLE test (a INTEGER PRIMARY KEY)")
    ---
    - row_count: 1
    ...
    
    tarantool> box.execute([[ALTER TABLE test ADD COLUMN b TEXT
             >                                           CHECK (LENGTH(b) > 1)
             >                                           NOT NULL
             >                                           DEFAULT ('aa')
             >                                           COLLATE "unicode_ci"
             >             ]])
    ---
    - row_count: 1
    ...
    ```

diff --git a/extra/mkkeywordhash.c b/extra/mkkeywordhash.c
index bacdad9b3..7480c0211 100644
--- a/extra/mkkeywordhash.c
+++ b/extra/mkkeywordhash.c
@@ -76,7 +76,7 @@ static Keyword aKeywordTable[] = {
   { "CHECK",                  "TK_CHECK",       true  },
   { "COLLATE",                "TK_COLLATE",     true  },
   { "COLUMN_REF",             "TK_COLUMN_REF",  true  },
-  { "COLUMN",                 "TK_STANDARD",    true  },
+  { "COLUMN",                 "TK_COLUMN",      true  },
   { "COMMIT",                 "TK_COMMIT",      true  },
   { "CONFLICT",               "TK_CONFLICT",    false },
   { "CONSTRAINT",             "TK_CONSTRAINT",  true  },
diff --git a/src/box/errcode.h b/src/box/errcode.h
index e6957d612..cfea5bcf2 100644
--- a/src/box/errcode.h
+++ b/src/box/errcode.h
@@ -273,6 +273,7 @@ struct errcode_record {
 	/*218 */_(ER_TUPLE_METADATA_IS_TOO_BIG,	"Can't create tuple: metadata size %u is too big") \
 	/*219 */_(ER_XLOG_GAP,			"%s") \
 	/*220 */_(ER_TOO_EARLY_SUBSCRIBE,	"Can't subscribe non-anonymous replica %s until join is done") \
+	/*221 */_(ER_SQL_CANT_ADD_AUTOINC,	"Can't add AUTOINCREMENT: space %s can't feature more than one AUTOINCREMENT field") \
 
 /*
  * !IMPORTANT! Please follow instructions at start of the file
diff --git a/src/box/sql/build.c b/src/box/sql/build.c
index fd8e7ed1e..35883aa0f 100644
--- a/src/box/sql/build.c
+++ b/src/box/sql/build.c
@@ -285,48 +285,110 @@ sql_field_retrieve(Parse *parser, struct space_def *space_def, uint32_t id)
 	return field;
 }
 
-/*
- * Add a new column to the table currently being constructed.
+/**
+ * Make shallow copy of @a space on region.
  *
- * The parser calls this routine once for each column declaration
- * in a CREATE TABLE statement.  sqlStartTable() gets called
- * first to get things going.  Then this routine is called for each
- * column.
+ * Function is used to add a new column to an existing space with
+ * <ALTER TABLE ADD COLUMN> statement. Copy space def and index
+ * array to create constraints appeared in the statement. The
+ * index array copy will be modified by adding new elements to it.
+ * It is necessary, because the statement may contain several
+ * index definitions (constraints).
  */
+static struct space *
+sql_shallow_space_copy(struct Parse *parse, struct space *space)
+{
+	assert(space->def != NULL);
+	struct space *ret = sql_ephemeral_space_new(parse, space->def->name);
+	if (ret == NULL)
+		goto error;
+	ret->index_count = space->index_count;
+	ret->index_id_max = space->index_id_max;
+	size_t size = 0;
+	ret->index = region_alloc_array(&parse->region, typeof(struct index *),
+					ret->index_count, &size);
+	if (ret->index == NULL) {
+		diag_set(OutOfMemory, size, "region_alloc_array", "ret->index");
+		goto error;
+	}
+	memcpy(ret->index, space->index, size);
+	memcpy(ret->def, space->def, sizeof(struct space_def));
+	ret->def->opts.is_temporary = true;
+	ret->def->opts.is_ephemeral = true;
+	if (ret->def->field_count != 0) {
+		uint32_t fields_size = 0;
+		ret->def->fields =
+			region_alloc_array(&parse->region,
+					   typeof(struct field_def),
+					   ret->def->field_count, &fields_size);
+		if (ret->def->fields == NULL) {
+			diag_set(OutOfMemory, fields_size, "region_alloc",
+				 "ret->def->fields");
+			goto error;
+		}
+		memcpy(ret->def->fields, space->def->fields, fields_size);
+	}
+
+	return ret;
+error:
+	parse->is_aborted = true;
+	return NULL;
+}
+
 void
-sqlAddColumn(Parse * pParse, Token * pName, struct type_def *type_def)
+sql_create_column_start(struct Parse *parse)
 {
-	assert(type_def != NULL);
-	char *z;
-	sql *db = pParse->db;
-	if (pParse->create_table_def.new_space == NULL)
-		return;
-	struct space_def *def = pParse->create_table_def.new_space->def;
+	struct create_column_def *create_column_def = &parse->create_column_def;
+	struct alter_entity_def *alter_entity_def =
+		&create_column_def->base.base;
+	assert(alter_entity_def->entity_type == ENTITY_TYPE_COLUMN);
+	assert(alter_entity_def->alter_action == ALTER_ACTION_CREATE);
+	struct space *space = parse->create_table_def.new_space;
+	bool is_alter = space == NULL;
+	struct sql *db = parse->db;
+	if (is_alter) {
+		const char *space_name =
+			alter_entity_def->entity_name->a[0].zName;
+		space = space_by_name(space_name);
+		if (space == NULL) {
+			diag_set(ClientError, ER_NO_SUCH_SPACE, space_name);
+			goto tnt_error;
+		}
+		space = sql_shallow_space_copy(parse, space);
+		if (space == NULL)
+			goto tnt_error;
+	}
+	create_column_def->space = space;
+	struct space_def *def = space->def;
+	assert(def->opts.is_ephemeral);
 
 #if SQL_MAX_COLUMN
 	if ((int)def->field_count + 1 > db->aLimit[SQL_LIMIT_COLUMN]) {
 		diag_set(ClientError, ER_SQL_COLUMN_COUNT_MAX, def->name,
 			 def->field_count + 1, db->aLimit[SQL_LIMIT_COLUMN]);
-		pParse->is_aborted = true;
-		return;
+		goto tnt_error;
 	}
 #endif
+
+	struct region *region = &parse->region;
+	struct Token *name = &create_column_def->base.name;
+	char *column_name =
+		sql_normalized_name_region_new(region, name->z, name->n);
+	if (column_name == NULL)
+		goto tnt_error;
+
 	/*
-	 * As sql_field_retrieve will allocate memory on region
-	 * ensure that def is also temporal and would be dropped.
+	 * Format can be set in Lua, then exact_field_count can be
+	 * zero, but field_count is not.
 	 */
-	assert(def->opts.is_ephemeral);
-	if (sql_field_retrieve(pParse, def, def->field_count) == NULL)
+	if (def->exact_field_count == 0)
+		def->exact_field_count = def->field_count;
+	if (sql_field_retrieve(parse, def, def->field_count) == NULL)
 		return;
-	struct region *region = &pParse->region;
-	z = sql_normalized_name_region_new(region, pName->z, pName->n);
-	if (z == NULL) {
-		pParse->is_aborted = true;
-		return;
-	}
+
 	struct field_def *column_def = &def->fields[def->field_count];
 	memcpy(column_def, &field_def_default, sizeof(field_def_default));
-	column_def->name = z;
+	column_def->name = column_name;
 	/*
 	 * Marker ON_CONFLICT_ACTION_DEFAULT is used to detect
 	 * attempts to define NULL multiple time or to detect
@@ -334,18 +396,85 @@ sqlAddColumn(Parse * pParse, Token * pName, struct type_def *type_def)
 	 */
 	column_def->nullable_action = ON_CONFLICT_ACTION_DEFAULT;
 	column_def->is_nullable = true;
-	column_def->type = type_def->type;
+	column_def->type = create_column_def->type_def->type;
 	def->field_count++;
+
+	sqlSrcListDelete(db, alter_entity_def->entity_name);
+	return;
+tnt_error:
+	parse->is_aborted = true;
+	sqlSrcListDelete(db, alter_entity_def->entity_name);
+}
+
+static void
+vdbe_emit_create_constraints(struct Parse *parse, int reg_space_id);
+
+void
+sql_create_column_end(struct Parse *parse)
+{
+	struct space *space = parse->create_column_def.space;
+	assert(space != NULL);
+	struct space_def *def = space->def;
+	struct field_def *field = &def->fields[def->field_count - 1];
+	if (field->nullable_action == ON_CONFLICT_ACTION_DEFAULT) {
+		field->nullable_action = ON_CONFLICT_ACTION_NONE;
+		field->is_nullable = true;
+	}
+	/*
+	 * Encode the format array and emit code to update _space.
+	 */
+	uint32_t table_stmt_sz = 0;
+	struct region *region = &parse->region;
+	char *table_stmt = sql_encode_table(region, def, &table_stmt_sz);
+	char *raw = sqlDbMallocRaw(parse->db, table_stmt_sz);
+	if (table_stmt == NULL || raw == NULL) {
+		parse->is_aborted = true;
+		return;
+	}
+	memcpy(raw, table_stmt, table_stmt_sz);
+
+	struct Vdbe *v = sqlGetVdbe(parse);
+	assert(v != NULL);
+
+	struct space *s_space = space_by_id(BOX_SPACE_ID);
+	assert(s_space != NULL);
+	int cursor = parse->nTab++;
+	vdbe_emit_open_cursor(parse, cursor, 0, s_space);
+	sqlVdbeChangeP5(v, OPFLAG_SYSTEMSP);
+
+	int key_reg = ++parse->nMem;
+	sqlVdbeAddOp2(v, OP_Integer, def->id, key_reg);
+	int addr = sqlVdbeAddOp4Int(v, OP_Found, cursor, 0, key_reg, 1);
+	sqlVdbeAddOp2(v, OP_Halt, -1, ON_CONFLICT_ACTION_ABORT);
+	sqlVdbeJumpHere(v, addr);
+
+	int tuple_reg = sqlGetTempRange(parse, box_space_field_MAX + 1);
+	for (int i = 0; i < box_space_field_MAX - 1; ++i)
+		sqlVdbeAddOp3(v, OP_Column, cursor, i, tuple_reg + i);
+	sqlVdbeAddOp1(v, OP_Close, cursor);
+
+	sqlVdbeAddOp2(v, OP_Integer, def->field_count,
+		      tuple_reg + BOX_SPACE_FIELD_FIELD_COUNT);
+	sqlVdbeAddOp4(v, OP_Blob, table_stmt_sz,
+		      tuple_reg + BOX_SPACE_FIELD_FORMAT,
+		      SQL_SUBTYPE_MSGPACK, raw, P4_DYNAMIC);
+	sqlVdbeAddOp3(v, OP_MakeRecord, tuple_reg, box_space_field_MAX,
+		      tuple_reg + box_space_field_MAX);
+	sqlVdbeAddOp4(v, OP_IdxReplace, tuple_reg + box_space_field_MAX, 0, 0,
+		      (char *) s_space, P4_SPACEPTR);
+	sqlVdbeCountChanges(v);
+	sqlVdbeChangeP5(v, OPFLAG_NCHANGE);
+	sqlReleaseTempRange(parse, tuple_reg, box_space_field_MAX + 1);
+	vdbe_emit_create_constraints(parse, key_reg);
 }
 
 void
 sql_column_add_nullable_action(struct Parse *parser,
 			       enum on_conflict_action nullable_action)
 {
-	struct space *space = parser->create_table_def.new_space;
-	if (space == NULL || NEVER(space->def->field_count < 1))
-		return;
-	struct space_def *def = space->def;
+	assert(parser->create_column_def.space != NULL);
+	struct space_def *def = parser->create_column_def.space->def;
+	assert(def->field_count > 0);
 	struct field_def *field = &def->fields[def->field_count - 1];
 	if (field->nullable_action != ON_CONFLICT_ACTION_DEFAULT &&
 	    nullable_action != field->nullable_action) {
@@ -364,20 +493,21 @@ sql_column_add_nullable_action(struct Parse *parser,
 }
 
 /*
- * The expression is the default value for the most recently added column
- * of the table currently under construction.
+ * The expression is the default value for the most recently added
+ * column.
  *
  * Default value expressions must be constant.  Raise an exception if this
  * is not the case.
  *
  * This routine is called by the parser while in the middle of
- * parsing a CREATE TABLE statement.
+ * parsing a <CREATE TABLE> or an <ALTER TABLE ADD COLUMN>
+ * statement.
  */
 void
 sqlAddDefaultValue(Parse * pParse, ExprSpan * pSpan)
 {
 	sql *db = pParse->db;
-	struct space *p = pParse->create_table_def.new_space;
+	struct space *p = pParse->create_column_def.space;
 	if (p != NULL) {
 		assert(p->def->opts.is_ephemeral);
 		struct space_def *def = p->def;
@@ -447,6 +577,8 @@ sqlAddPrimaryKey(struct Parse *pParse)
 	int nTerm;
 	struct ExprList *pList = pParse->create_index_def.cols;
 	struct space *space = pParse->create_table_def.new_space;
+	if (space == NULL)
+		space = pParse->create_column_def.space;
 	if (space == NULL)
 		goto primary_key_exit;
 	if (sql_space_primary_key(space) != NULL) {
@@ -574,8 +706,10 @@ sql_create_check_contraint(struct Parse *parser)
 		(struct alter_entity_def *) create_ck_def;
 	assert(alter_def->entity_type == ENTITY_TYPE_CK);
 	(void) alter_def;
-	struct space *space = parser->create_table_def.new_space;
-	bool is_alter = space == NULL;
+	struct space *space = parser->create_column_def.space;
+	if (space == NULL)
+		space = parser->create_table_def.new_space;
+	bool is_alter_add_constr = space == NULL;
 
 	/* Prepare payload for ck constraint definition. */
 	struct region *region = &parser->region;
@@ -589,8 +723,22 @@ sql_create_check_contraint(struct Parse *parser)
 			return;
 		}
 	} else {
-		assert(! is_alter);
+		assert(!is_alter_add_constr);
 		uint32_t ck_idx = ++parser->create_checks_def.count;
+		/*
+		 * If it is <ALTER TABLE ADD COLUMN> we should
+		 * count the existing CHECK constraints in the
+		 * space and form a name based on this.
+		 */
+		if (parser->create_table_def.new_space == NULL) {
+			struct space *original_space =
+				space_by_name(space->def->name);
+			assert(original_space != NULL);
+			struct ck_constraint *ck;
+			rlist_foreach_entry(ck, &original_space->ck_constraint,
+					    link)
+				ck_idx++;
+		}
 		name = tt_sprintf("ck_unnamed_%s_%u", space->def->name, ck_idx);
 	}
 	size_t name_len = strlen(name);
@@ -634,7 +782,7 @@ sql_create_check_contraint(struct Parse *parser)
 	trim_space_snprintf(ck_def->expr_str, expr_str, expr_str_len);
 	memcpy(ck_def->name, name, name_len);
 	ck_def->name[name_len] = '\0';
-	if (is_alter) {
+	if (is_alter_add_constr) {
 		const char *space_name = alter_def->entity_name->a[0].zName;
 		struct space *space = space_by_name(space_name);
 		if (space == NULL) {
@@ -664,9 +812,8 @@ sql_create_check_contraint(struct Parse *parser)
 void
 sqlAddCollateType(Parse * pParse, Token * pToken)
 {
-	struct space *space = pParse->create_table_def.new_space;
-	if (space == NULL)
-		return;
+	struct space *space = pParse->create_column_def.space;
+	assert(space != NULL);
 	uint32_t i = space->def->field_count - 1;
 	sql *db = pParse->db;
 	char *coll_name = sql_name_from_token(db, pToken);
@@ -696,7 +843,6 @@ struct coll *
 sql_column_collation(struct space_def *def, uint32_t column, uint32_t *coll_id)
 {
 	assert(def != NULL);
-	struct space *space = space_by_id(def->id);
 	/*
 	 * It is not always possible to fetch collation directly
 	 * from struct space due to its absence in space cache.
@@ -705,13 +851,13 @@ sql_column_collation(struct space_def *def, uint32_t column, uint32_t *coll_id)
 	 *
 	 * In cases mentioned above collation is fetched by id.
 	 */
-	if (space == NULL) {
-		assert(def->opts.is_ephemeral);
+	if (def->opts.is_ephemeral) {
 		assert(column < (uint32_t)def->field_count);
 		*coll_id = def->fields[column].coll_id;
 		struct coll_id *collation = coll_by_id(*coll_id);
 		return collation != NULL ? collation->coll : NULL;
 	}
+	struct space *space = space_by_id(def->id);
 	struct tuple_field *field = tuple_format_field(space->format, column);
 	*coll_id = field->coll_id;
 	return field->coll;
@@ -795,7 +941,8 @@ vdbe_emit_create_index(struct Parse *parse, struct space_def *def,
 	memcpy(raw, index_parts, index_parts_sz);
 	index_parts = raw;
 
-	if (parse->create_table_def.new_space != NULL) {
+	if (parse->create_table_def.new_space != NULL ||
+	    parse->create_column_def.space != NULL) {
 		sqlVdbeAddOp2(v, OP_SCopy, space_id_reg, entry_reg);
 		sqlVdbeAddOp2(v, OP_Integer, idx_def->iid, entry_reg + 1);
 	} else {
@@ -1033,18 +1180,23 @@ vdbe_emit_fk_constraint_create(struct Parse *parse_context,
 			  P4_DYNAMIC);
 	/*
 	 * In case we are adding FK constraints during execution
-	 * of <CREATE TABLE ...> statement, we don't have child
-	 * id, but we know register where it will be stored.
+	 * of <CREATE TABLE ...> or <ALTER TABLE ADD COLUMN>
+	 * statement, we don't have child id (we know it, but
+	 * fk->child_id stores register because of code reuse in
+	 * vdbe_emit_create_constraints()), but we know register
+	 * where it will be stored.
 	 */
-	if (parse_context->create_table_def.new_space != NULL) {
+	bool is_alter_add_constr =
+		parse_context->create_table_def.new_space == NULL &&
+		parse_context->create_column_def.space == NULL;
+	if (!is_alter_add_constr) {
 		sqlVdbeAddOp2(vdbe, OP_SCopy, fk->child_id,
 				  constr_tuple_reg + 1);
 	} else {
 		sqlVdbeAddOp2(vdbe, OP_Integer, fk->child_id,
 				  constr_tuple_reg + 1);
 	}
-	if (parse_context->create_table_def.new_space != NULL &&
-	    fk_constraint_is_self_referenced(fk)) {
+	if (!is_alter_add_constr && fk_constraint_is_self_referenced(fk)) {
 		sqlVdbeAddOp2(vdbe, OP_SCopy, fk->parent_id,
 				  constr_tuple_reg + 2);
 	} else {
@@ -1108,7 +1260,7 @@ vdbe_emit_fk_constraint_create(struct Parse *parse_context,
 			  constr_tuple_reg + 9);
 	sqlVdbeAddOp2(vdbe, OP_SInsert, BOX_FK_CONSTRAINT_ID,
 		      constr_tuple_reg + 9);
-	if (parse_context->create_table_def.new_space == NULL) {
+	if (is_alter_add_constr) {
 		sqlVdbeCountChanges(vdbe);
 		sqlVdbeChangeP5(vdbe, OPFLAG_NCHANGE);
 	}
@@ -1149,15 +1301,28 @@ resolve_link(struct Parse *parse_context, const struct space_def *def,
 
 /**
  * Emit code to create sequences, indexes, check and foreign key
- * constraints appeared in <CREATE TABLE>.
+ * constraints appeared in <CREATE TABLE> or
+ * <ALTER TABLE ADD COLUMN>.
  */
 static void
 vdbe_emit_create_constraints(struct Parse *parse, int reg_space_id)
 {
 	assert(reg_space_id != 0);
 	struct space *space = parse->create_table_def.new_space;
-	assert(space != NULL);
+	bool is_alter = space == NULL;
 	uint32_t i = 0;
+	/*
+	 * If it is an <ALTER TABLE ADD COLUMN>, then we have to
+	 * create all indexes added by this statement. These
+	 * indexes are in the array, starting with old index_count
+	 * (inside space object) and ending with new index_count
+	 * (inside ephemeral space).
+	 */
+	if (is_alter) {
+		space = parse->create_column_def.space;
+		i = space_by_name(space->def->name)->index_count;
+	}
+	assert(space != NULL);
 	for (; i < space->index_count; ++i) {
 		struct index *idx = space->index[i];
 		vdbe_emit_create_index(parse, space->def, idx->def,
@@ -1176,6 +1341,20 @@ vdbe_emit_create_constraints(struct Parse *parse, int reg_space_id)
 		sqlVdbeAddOp2(v, OP_NextSequenceId, 0, reg_seq_id);
 		int reg_seq_rec = emitNewSysSequenceRecord(parse, reg_seq_id,
 							   space->def->name);
+		if (is_alter) {
+			int errcode = ER_SQL_CANT_ADD_AUTOINC;
+			const char *error_msg =
+				tt_sprintf(tnt_errcode_desc(errcode),
+					   space->def->name);
+			if (vdbe_emit_halt_with_presence_test(parse,
+							      BOX_SEQUENCE_ID,
+							      2,
+							      reg_seq_rec + 3,
+							      1, errcode,
+							      error_msg, false,
+							      OP_NoConflict) != 0)
+				return;
+		}
 		sqlVdbeAddOp2(v, OP_SInsert, BOX_SEQUENCE_ID, reg_seq_rec);
 		/* Do an insertion into _space_sequence. */
 		int reg_space_seq_record =
@@ -1874,24 +2053,28 @@ sql_create_foreign_key(struct Parse *parse_context)
 	char *parent_name = NULL;
 	char *constraint_name = NULL;
 	bool is_self_referenced = false;
+	struct space *space = parse_context->create_column_def.space;
 	struct create_table_def *table_def = &parse_context->create_table_def;
-	struct space *space = table_def->new_space;
+	if (space == NULL)
+		space = table_def->new_space;
 	/*
-	 * Space under construction during CREATE TABLE
-	 * processing. NULL for ALTER TABLE statement handling.
+	 * Space under construction during <CREATE TABLE>
+	 * processing or shallow copy of space during <ALTER TABLE
+	 * ... ADD COLUMN>. NULL for <ALTER TABLE ... ADD
+	 * CONSTRAINT> statement handling.
 	 */
-	bool is_alter = space == NULL;
+	bool is_alter_add_constr = space == NULL;
 	uint32_t child_cols_count;
 	struct ExprList *child_cols = create_fk_def->child_cols;
 	if (child_cols == NULL) {
-		assert(!is_alter);
+		assert(!is_alter_add_constr);
 		child_cols_count = 1;
 	} else {
 		child_cols_count = child_cols->nExpr;
 	}
 	struct ExprList *parent_cols = create_fk_def->parent_cols;
 	struct space *child_space = NULL;
-	if (is_alter) {
+	if (is_alter_add_constr) {
 		const char *child_name = alter_def->entity_name->a[0].zName;
 		child_space = space_by_name(child_name);
 		if (child_space == NULL) {
@@ -1909,6 +2092,12 @@ sql_create_foreign_key(struct Parse *parse_context)
 			goto tnt_error;
 		}
 		memset(fk_parse, 0, sizeof(*fk_parse));
+		/*
+		 * Child space already exists if it is
+		 * <ALTER TABLE ADD COLUMN>.
+		 */
+		if (table_def->new_space == NULL)
+			child_space = space;
 		rlist_add_entry(&parse_context->create_fkeys_def.fkeys,
 				fk_parse, link);
 	}
@@ -1922,27 +2111,41 @@ sql_create_foreign_key(struct Parse *parse_context)
 	 * self-referenced, but in this case parent (which is
 	 * also child) table will definitely exist.
 	 */
-	is_self_referenced = !is_alter &&
+	is_self_referenced = !is_alter_add_constr &&
 			     strcmp(parent_name, space->def->name) == 0;
 	struct space *parent_space = space_by_name(parent_name);
-	if (parent_space == NULL) {
-		if (is_self_referenced) {
-			struct rlist *fkeys =
-				&parse_context->create_fkeys_def.fkeys;
-			struct fk_constraint_parse *fk =
-				rlist_first_entry(fkeys,
-						  struct fk_constraint_parse,
-						  link);
-			fk->selfref_cols = parent_cols;
-			fk->is_self_referenced = true;
-		} else {
-			diag_set(ClientError, ER_NO_SUCH_SPACE, parent_name);;
-			goto tnt_error;
-		}
+	if (parent_space == NULL && !is_self_referenced) {
+		diag_set(ClientError, ER_NO_SUCH_SPACE, parent_name);
+		goto tnt_error;
+	}
+	if (is_self_referenced) {
+		struct rlist *fkeys = &parse_context->create_fkeys_def.fkeys;
+		struct fk_constraint_parse *fk =
+			rlist_first_entry(fkeys, struct fk_constraint_parse,
+					  link);
+		fk->selfref_cols = parent_cols;
+		fk->is_self_referenced = true;
 	}
-	if (!is_alter) {
+	if (!is_alter_add_constr) {
 		if (create_def->name.n == 0) {
 			uint32_t idx = ++parse_context->create_fkeys_def.count;
+			/*
+			 * If it is <ALTER TABLE ADD COLUMN> we
+			 * should count the existing FK
+			 * constraints in the space and form a
+			 * name based on this.
+			 */
+			if (table_def->new_space == NULL) {
+				struct space *original_space =
+					space_by_name(space->def->name);
+				assert(original_space != NULL);
+				struct rlist *child_fk =
+					&original_space->child_fk_constraint;
+				struct fk_constraint *fk;
+				rlist_foreach_entry(fk, child_fk,
+						    in_child_space)
+					idx++;
+			}
 			constraint_name = sqlMPrintf(db, "fk_unnamed_%s_%u",
 						     space->def->name, idx);
 		} else {
@@ -2024,7 +2227,7 @@ sql_create_foreign_key(struct Parse *parse_context)
 					    constraint_name) != 0) {
 			goto exit_create_fk;
 		}
-		if (!is_alter) {
+		if (!is_alter_add_constr) {
 			if (child_cols == NULL) {
 				assert(i == 0);
 				/*
@@ -2053,12 +2256,14 @@ sql_create_foreign_key(struct Parse *parse_context)
 	memcpy(fk_def->name, constraint_name, name_len);
 	fk_def->name[name_len] = '\0';
 	/*
-	 * In case of CREATE TABLE processing, all foreign keys
-	 * constraints must be created after space itself, so
-	 * lets delay it until sqlEndTable() call and simply
-	 * maintain list of all FK constraints inside parser.
+	 * In case of <СREATE TABLE> and <ALTER TABLE ADD COLUMN>
+	 * processing, all foreign keys constraints must be
+	 * created after space itself (or space altering), so let
+	 * delay it until vdbe_emit_create_constraints() call and
+	 * simply maintain list of all FK constraints inside
+	 * parser.
 	 */
-	if (!is_alter) {
+	if (!is_alter_add_constr) {
 		struct rlist *fkeys = &parse_context->create_fkeys_def.fkeys;
 		struct fk_constraint_parse *fk_parse =
 			rlist_first_entry(fkeys, struct fk_constraint_parse,
@@ -2435,7 +2640,10 @@ sql_create_index(struct Parse *parse) {
 	 * Find the table that is to be indexed.
 	 * Return early if not found.
 	 */
-	struct space *space = NULL;
+	struct space *space = parse->create_table_def.new_space;
+	if (space == NULL)
+		space = parse->create_column_def.space;
+	bool is_create_table_or_add_col = space != NULL;
 	struct Token token = create_entity_def->name;
 	if (tbl_name != NULL) {
 		assert(token.n > 0 && token.z != NULL);
@@ -2448,10 +2656,8 @@ sql_create_index(struct Parse *parse) {
 			}
 			goto exit_create_index;
 		}
-	} else {
-		if (parse->create_table_def.new_space == NULL)
-			goto exit_create_index;
-		space = parse->create_table_def.new_space;
+	} else if (!is_create_table_or_add_col) {
+		goto exit_create_index;
 	}
 	struct space_def *def = space->def;
 
@@ -2486,7 +2692,7 @@ sql_create_index(struct Parse *parse) {
 	 * 2) UNIQUE constraint is non-named and standard
 	 *    auto-index name will be generated.
 	 */
-	if (parse->create_table_def.new_space == NULL) {
+	if (!is_create_table_or_add_col) {
 		assert(token.z != NULL);
 		name = sql_name_from_token(db, &token);
 		if (name == NULL) {
@@ -2652,7 +2858,7 @@ sql_create_index(struct Parse *parse) {
 	 * constraint, but has different onError (behavior on
 	 * constraint violation), then an error is raised.
 	 */
-	if (parse->create_table_def.new_space != NULL) {
+	if (is_create_table_or_add_col) {
 		for (uint32_t i = 0; i < space->index_count; ++i) {
 			struct index *existing_idx = space->index[i];
 			uint32_t iid = existing_idx->def->iid;
@@ -2740,7 +2946,8 @@ sql_create_index(struct Parse *parse) {
 		sqlVdbeAddOp0(vdbe, OP_Expire);
 	}
 
-	if (tbl_name != NULL || sql_space_add_index(parse, space, index) != 0)
+	if (!is_create_table_or_add_col ||
+	    sql_space_add_index(parse, space, index) != 0)
 		goto exit_create_index;
 	index = NULL;
 
diff --git a/src/box/sql/parse.y b/src/box/sql/parse.y
index da4e2a3ae..d7c65bb4b 100644
--- a/src/box/sql/parse.y
+++ b/src/box/sql/parse.y
@@ -228,19 +228,24 @@ create_table_end ::= . { sqlEndTable(pParse); }
  */
 
 columnlist ::= columnlist COMMA tcons.
-columnlist ::= columnlist COMMA columnname carglist autoinc(I). {
-  uint32_t fieldno = pParse->create_table_def.new_space->def->field_count - 1;
-  if (I == 1 && sql_add_autoincrement(pParse, fieldno) != 0)
-    return;
+columnlist ::= columnlist COMMA column_def create_column_end.
+columnlist ::= column_def create_column_end.
+
+column_def ::= column_name_and_type carglist.
+
+column_name_and_type ::= nm(A) typedef(Y). {
+  create_column_def_init(&pParse->create_column_def, NULL, &A, &Y);
+  sql_create_column_start(pParse);
 }
 
-columnlist ::= columnname carglist autoinc(I). {
-  uint32_t fieldno = pParse->create_table_def.new_space->def->field_count - 1;
+create_column_end ::= autoinc(I). {
+  uint32_t fieldno = pParse->create_column_def.space->def->field_count - 1;
   if (I == 1 && sql_add_autoincrement(pParse, fieldno) != 0)
     return;
+  if (pParse->create_table_def.new_space == NULL)
+    sql_create_column_end(pParse);
 }
 columnlist ::= tcons.
-columnname(A) ::= nm(A) typedef(Y). {sqlAddColumn(pParse,&A,&Y);}
 
 // An IDENTIFIER can be a generic identifier, or one of several
 // keywords.  Any non-standard keyword can also be an identifier.
@@ -283,9 +288,11 @@ nm(A) ::= id(A). {
   }
 }
 
-// "carglist" is a list of additional constraints that come after the
-// column name and column type in a CREATE TABLE statement.
-//
+/**
+ * "carglist" is a list of additional constraints and clauses that
+ * come after the column name and column type in a <CREATE TABLE>
+ * or <ALTER TABLE ADD COLUMN> statement.
+ */
 carglist ::= carglist ccons.
 carglist ::= .
 %type cconsname { struct Token }
@@ -1737,11 +1744,30 @@ alter_table_start(A) ::= ALTER TABLE fullname(T) . { A = T; }
 
 %type alter_add_constraint {struct alter_args}
 alter_add_constraint(A) ::= alter_table_start(T) ADD CONSTRAINT nm(N). {
+   A.table_name = T;
+   A.name = N;
+   pParse->initiateTTrans = true;
+ }
+
+%type alter_add_column {struct alter_args}
+alter_add_column(A) ::= alter_table_start(T) ADD column_name(N). {
   A.table_name = T;
   A.name = N;
   pParse->initiateTTrans = true;
 }
 
+column_name(N) ::= COLUMN nm(A). { N = A; }
+column_name(N) ::= nm(A). { N = A; }
+
+cmd ::= alter_column_def carglist create_column_end.
+
+alter_column_def ::= alter_add_column(N) typedef(Y). {
+  create_column_def_init(&pParse->create_column_def, N.table_name, &N.name, &Y);
+  create_checks_def_init(&pParse->create_checks_def);
+  create_fkeys_def_init(&pParse->create_fkeys_def);
+  sql_create_column_start(pParse);
+}
+
 cmd ::= alter_add_constraint(N) FOREIGN KEY LP eidlist(FA) RP REFERENCES
         nm(T) eidlist_opt(TA) matcharg(M) refargs(R) defer_subclause_opt(D). {
   create_fk_def_init(&pParse->create_fk_def, N.table_name, &N.name, FA, &T, TA,
diff --git a/src/box/sql/parse_def.h b/src/box/sql/parse_def.h
index 21829b6f0..07230a8be 100644
--- a/src/box/sql/parse_def.h
+++ b/src/box/sql/parse_def.h
@@ -107,9 +107,10 @@ struct fk_constraint_parse {
 	 */
 	struct fk_constraint_def *fk_def;
 	/**
-	 * If inside CREATE TABLE statement we want to declare
-	 * self-referenced FK constraint, we must delay their
-	 * resolution until the end of parsing of all columns.
+	 * If inside <CREATE TABLE> or <ALTER TABLE ADD COLUMN>
+	 * statement we want to declare self-referenced FK
+	 * constraint, we must delay their resolution until the
+	 * end of parsing of all columns.
 	 * E.g.: CREATE TABLE t1(id REFERENCES t1(b), b);
 	 */
 	struct ExprList *selfref_cols;
@@ -154,6 +155,7 @@ enum sql_index_type {
 
 enum entity_type {
 	ENTITY_TYPE_TABLE = 0,
+	ENTITY_TYPE_COLUMN,
 	ENTITY_TYPE_VIEW,
 	ENTITY_TYPE_INDEX,
 	ENTITY_TYPE_TRIGGER,
@@ -207,6 +209,14 @@ struct create_table_def {
 	struct space *new_space;
 };
 
+struct create_column_def {
+	struct create_entity_def base;
+	/** Shallow space copy. */
+	struct space *space;
+	/** Column type. */
+	struct type_def *type_def;
+};
+
 struct create_checks_def {
 	/** List of ck_constraint_parse objects. */
 	struct rlist checks;
@@ -478,6 +488,16 @@ create_table_def_init(struct create_table_def *table_def, struct Token *name,
 			       if_not_exists);
 }
 
+static inline void
+create_column_def_init(struct create_column_def *column_def,
+		       struct SrcList *table_name, struct Token *name,
+		       struct type_def *type_def)
+{
+	create_entity_def_init(&column_def->base, ENTITY_TYPE_COLUMN,
+			       table_name, name, false);
+	column_def->type_def = type_def;
+}
+
 static inline void
 create_checks_def_init(struct create_checks_def *checks_def)
 {
diff --git a/src/box/sql/sqlInt.h b/src/box/sql/sqlInt.h
index 2e426600d..a54aa1d51 100644
--- a/src/box/sql/sqlInt.h
+++ b/src/box/sql/sqlInt.h
@@ -2251,20 +2251,24 @@ struct Parse {
 		struct enable_entity_def enable_entity_def;
 	};
 	/**
-	 * Table def is not part of union since information
-	 * being held must survive till the end of parsing of
-	 * whole CREATE TABLE statement (to pass it to
-	 * sqlEndTable() function).
+	 * Table def or column def is not part of union since
+	 * information being held must survive till the end of
+	 * parsing of whole <CREATE TABLE> or
+	 * <ALTER TABLE ADD COLUMN> statement (to pass it to
+	 * sqlEndTable() sql_create_column_end() function).
 	 */
 	struct create_table_def create_table_def;
+	struct create_column_def create_column_def;
 	/*
-	 * FK and CK constraints appeared in a <CREATE TABLE>.
+	 * FK and CK constraints appeared in a <CREATE TABLE> or
+	 * an <ALTER TABLE ADD COLUMN> statement.
 	 */
 	struct create_fkeys_def create_fkeys_def;
 	struct create_checks_def create_checks_def;
 	/*
-	 * True, if column within a <CREATE TABLE> statement to be
-	 * created has <AUTOINCREMENT>.
+	 * True, if column in a <CREATE TABLE> or an
+	 * <ALTER TABLE ADD COLUMN> statement to be created has
+	 * <AUTOINCREMENT>.
 	 */
 	bool has_autoinc;
 	/* Id of field with <AUTOINCREMENT>. */
@@ -2858,15 +2862,30 @@ struct space *sqlResultSetOfSelect(Parse *, Select *);
 
 struct space *
 sqlStartTable(Parse *, Token *);
-void sqlAddColumn(Parse *, Token *, struct type_def *);
+
+/**
+ * Add new field to the format of ephemeral space in
+ * create_column_def. If it is <ALTER TABLE> create shallow copy
+ * of the existing space and add field to its format.
+ */
+void
+sql_create_column_start(struct Parse *parse);
+
+/**
+ * Emit code to update entry in _space and code to create
+ * constraints (entries in _index, _ck_constraint, _fk_constraint)
+ * described with this column.
+ */
+void
+sql_create_column_end(struct Parse *parse);
 
 /**
  * This routine is called by the parser while in the middle of
- * parsing a CREATE TABLE statement.  A "NOT NULL" constraint has
- * been seen on a column.  This routine sets the is_nullable flag
- * on the column currently under construction.
- * If nullable_action has been already set, this function raises
- * an error.
+ * parsing a <CREATE TABLE> or a <ALTER TABLE ADD COLUMN>
+ * statement. A "NOT NULL" constraint has been seen on a column.
+ * This routine sets the is_nullable flag on the column currently
+ * under construction. If nullable_action has been already set,
+ * this function raises an error.
  *
  * @param parser SQL Parser object.
  * @param nullable_action on_conflict_action value.
diff --git a/src/box/sql/tokenize.c b/src/box/sql/tokenize.c
index 5404a78e9..0899cf23e 100644
--- a/src/box/sql/tokenize.c
+++ b/src/box/sql/tokenize.c
@@ -40,6 +40,7 @@
 #include <unicode/uchar.h>
 
 #include "box/session.h"
+#include "box/schema.h"
 #include "say.h"
 #include "sqlInt.h"
 #include "tarantoolInt.h"
@@ -431,8 +432,8 @@ sql_token(const char *z, int *type, bool *is_reserved)
 
 /**
  * This function is called to release parsing artifacts
- * during table creation. The only objects allocated using
- * malloc are index defs and check constraints.
+ * during table creation or column addition. The only objects
+ * allocated using malloc are index defs.
  * Note that this functions can't be called on ordinary
  * space object. It's purpose is to clean-up parser->new_space.
  *
@@ -445,7 +446,15 @@ parser_space_delete(struct sql *db, struct space *space)
 	if (space == NULL || db == NULL)
 		return;
 	assert(space->def->opts.is_ephemeral);
-	for (uint32_t i = 0; i < space->index_count; ++i)
+	struct space *altered_space = space_by_name(space->def->name);
+	uint32_t i = 0;
+	/*
+	 * Don't delete already existing defs and start from new
+	 * ones.
+	 */
+	if (altered_space != NULL)
+		i = altered_space->index_count;
+	for (; i < space->index_count; ++i)
 		index_def_delete(space->index[i]->def);
 }
 
@@ -539,7 +548,7 @@ sqlRunParser(Parse * pParse, const char *zSql)
 		sqlVdbeDelete(pParse->pVdbe);
 		pParse->pVdbe = 0;
 	}
-	parser_space_delete(db, pParse->create_table_def.new_space);
+	parser_space_delete(db, pParse->create_column_def.space);
 
 	if (pParse->pWithToFree)
 		sqlWithDelete(db, pParse->pWithToFree);
diff --git a/test/box/error.result b/test/box/error.result
index 4d85b9e55..2f6d7fb22 100644
--- a/test/box/error.result
+++ b/test/box/error.result
@@ -439,6 +439,7 @@ t;
  |   218: box.error.TUPLE_METADATA_IS_TOO_BIG
  |   219: box.error.XLOG_GAP
  |   220: box.error.TOO_EARLY_SUBSCRIBE
+ |   221: box.error.SQL_CANT_ADD_AUTOINC
  | ...
 
 test_run:cmd("setopt delimiter ''");
diff --git a/test/sql/add-column.result b/test/sql/add-column.result
new file mode 100644
index 000000000..924368ea2
--- /dev/null
+++ b/test/sql/add-column.result
@@ -0,0 +1,529 @@
+-- test-run result file version 2
+--
+-- gh-3075: Check <ALTER TABLE table ADD COLUMN column> statement.
+--
+CREATE TABLE t1 (a INT PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- COLUMN keyword is optional. Check it here, but omit it below.
+--
+ALTER TABLE t1 ADD COLUMN b INT;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- A column with the same name already exists.
+--
+ALTER TABLE t1 ADD b SCALAR;
+ | ---
+ | - null
+ | - Space field 'B' is duplicate
+ | ...
+
+--
+-- Can't add column to a view.
+--
+CREATE VIEW v AS SELECT * FROM t1;
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE v ADD c INT;
+ | ---
+ | - null
+ | - 'Can''t modify space ''V'': view can not be altered'
+ | ...
+
+\set language lua
+ | ---
+ | - true
+ | ...
+view = box.space._space.index[2]:select('V')[1]:totable()
+ | ---
+ | ...
+view_format = view[7]
+ | ---
+ | ...
+f = {type = 'string', nullable_action = 'none', name = 'C', is_nullable = true}
+ | ---
+ | ...
+table.insert(view_format, f)
+ | ---
+ | ...
+view[5] = 3
+ | ---
+ | ...
+view[7] = view_format
+ | ---
+ | ...
+box.space._space:replace(view)
+ | ---
+ | - error: 'Can''t modify space ''V'': view can not be altered'
+ | ...
+\set language sql
+ | ---
+ | - true
+ | ...
+
+DROP VIEW v;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Check PRIMARY KEY constraint works with an added column.
+--
+CREATE TABLE pk_check (a INT CONSTRAINT pk PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE pk_check DROP CONSTRAINT pk;
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE pk_check ADD b INT PRIMARY KEY;
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO pk_check VALUES (1, 1);
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO pk_check VALUES (1, 1);
+ | ---
+ | - null
+ | - Duplicate key exists in unique index 'pk_unnamed_PK_CHECK_1' in space 'PK_CHECK'
+ | ...
+DROP TABLE pk_check;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Check UNIQUE constraint works with an added column.
+--
+CREATE TABLE unique_check (a INT PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE unique_check ADD b INT UNIQUE;
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO unique_check VALUES (1, 1);
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO unique_check VALUES (2, 1);
+ | ---
+ | - null
+ | - Duplicate key exists in unique index 'unique_unnamed_UNIQUE_CHECK_2' in space 'UNIQUE_CHECK'
+ | ...
+DROP TABLE unique_check;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Check CHECK constraint works with an added column.
+--
+CREATE TABLE ck_check (a INT PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE ck_check ADD b INT CHECK (b > 0);
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO ck_check VALUES (1, 0);
+ | ---
+ | - null
+ | - 'Check constraint failed ''ck_unnamed_CK_CHECK_1'': b > 0'
+ | ...
+INSERT INTO ck_check VALUES (1, 1);
+ | ---
+ | - row_count: 1
+ | ...
+DROP TABLE ck_check;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Check FOREIGN KEY constraint works with an added column.
+--
+CREATE TABLE fk_check (a INT PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE fk_check ADD b INT REFERENCES t1(a);
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO fk_check VALUES (0, 1);
+ | ---
+ | - null
+ | - 'Failed to execute SQL statement: FOREIGN KEY constraint failed'
+ | ...
+INSERT INTO fk_check VALUES (2, 0);
+ | ---
+ | - null
+ | - 'Failed to execute SQL statement: FOREIGN KEY constraint failed'
+ | ...
+INSERT INTO fk_check VALUES (2, 1);
+ | ---
+ | - null
+ | - 'Failed to execute SQL statement: FOREIGN KEY constraint failed'
+ | ...
+INSERT INTO t1 VALUES (1, 1);
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO fk_check VALUES (2, 1);
+ | ---
+ | - row_count: 1
+ | ...
+DROP TABLE fk_check;
+ | ---
+ | - row_count: 1
+ | ...
+DROP TABLE t1;
+ | ---
+ | - row_count: 1
+ | ...
+--
+-- Check FOREIGN KEY (self-referenced) constraint works with an
+-- added column.
+--
+CREATE TABLE self (id INT PRIMARY KEY AUTOINCREMENT, a INT UNIQUE)
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE self ADD b INT REFERENCES self(a)
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO self(a,b) VALUES(1, 1);
+ | ---
+ | - autoincrement_ids:
+ |   - 1
+ |   row_count: 1
+ | ...
+UPDATE self SET a = 2, b = 2;
+ | ---
+ | - row_count: 1
+ | ...
+UPDATE self SET b = 3;
+ | ---
+ | - null
+ | - 'Failed to execute SQL statement: FOREIGN KEY constraint failed'
+ | ...
+UPDATE self SET a = 3;
+ | ---
+ | - null
+ | - 'Failed to execute SQL statement: FOREIGN KEY constraint failed'
+ | ...
+DROP TABLE self;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Check AUTOINCREMENT works with an added column.
+--
+CREATE TABLE autoinc_check (a INT CONSTRAINT pk PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE autoinc_check DROP CONSTRAINT pk;
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE autoinc_check ADD b INT PRIMARY KEY AUTOINCREMENT;
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO autoinc_check(a) VALUES(1);
+ | ---
+ | - autoincrement_ids:
+ |   - 1
+ |   row_count: 1
+ | ...
+INSERT INTO autoinc_check(a) VALUES(1);
+ | ---
+ | - autoincrement_ids:
+ |   - 2
+ |   row_count: 1
+ | ...
+TRUNCATE TABLE autoinc_check;
+ | ---
+ | - row_count: 0
+ | ...
+
+--
+-- Can't add second column with AUTOINCREMENT.
+--
+ALTER TABLE autoinc_check ADD c INT AUTOINCREMENT;
+ | ---
+ | - null
+ | - 'Can''t add AUTOINCREMENT: space AUTOINC_CHECK can''t feature more than one AUTOINCREMENT
+ |   field'
+ | ...
+DROP TABLE autoinc_check;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Check COLLATE clause works with an added column.
+--
+CREATE TABLE collate_check (a INT PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE collate_check ADD b TEXT COLLATE "unicode_ci";
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO collate_check VALUES (1, 'a');
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO collate_check VALUES (2, 'A');
+ | ---
+ | - row_count: 1
+ | ...
+SELECT * FROM collate_check WHERE b LIKE 'a';
+ | ---
+ | - metadata:
+ |   - name: A
+ |     type: integer
+ |   - name: B
+ |     type: string
+ |   rows:
+ |   - [1, 'a']
+ |   - [2, 'A']
+ | ...
+DROP TABLE collate_check;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Check DEFAULT clause works with an added column.
+--
+CREATE TABLE default_check (a INT PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE default_check ADD b TEXT DEFAULT ('a');
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO default_check(a) VALUES (1);
+ | ---
+ | - row_count: 1
+ | ...
+SELECT * FROM default_check;
+ | ---
+ | - metadata:
+ |   - name: A
+ |     type: integer
+ |   - name: B
+ |     type: string
+ |   rows:
+ |   - [1, 'a']
+ | ...
+DROP TABLE default_check;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Check NULL constraint works with an added column.
+--
+CREATE TABLE null_check (a INT PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE null_check ADD b TEXT NULL;
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO null_check(a) VALUES (1);
+ | ---
+ | - row_count: 1
+ | ...
+SELECT * FROM null_check;
+ | ---
+ | - metadata:
+ |   - name: A
+ |     type: integer
+ |   - name: B
+ |     type: string
+ |   rows:
+ |   - [1, null]
+ | ...
+DROP TABLE null_check;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Check NOT NULL constraint works with an added column.
+--
+CREATE TABLE notnull_check (a INT PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE notnull_check ADD b TEXT NOT NULL;
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO notnull_check(a) VALUES (1);
+ | ---
+ | - null
+ | - 'Failed to execute SQL statement: NOT NULL constraint failed: NOTNULL_CHECK.B'
+ | ...
+INSERT INTO notnull_check VALUES (1, 'not null');
+ | ---
+ | - row_count: 1
+ | ...
+DROP TABLE notnull_check;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Can't add a column with DEAFULT or NULL to a non-empty space.
+-- This ability isn't implemented yet.
+--
+CREATE TABLE non_empty (a INT PRIMARY KEY);
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO non_empty VALUES (1);
+ | ---
+ | - row_count: 1
+ | ...
+ALTER TABLE non_empty ADD b INT NULL;
+ | ---
+ | - null
+ | - Tuple field count 1 does not match space field count 2
+ | ...
+ALTER TABLE non_empty ADD b INT DEFAULT (1);
+ | ---
+ | - null
+ | - Tuple field count 1 does not match space field count 2
+ | ...
+DROP TABLE non_empty;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Add to a no-SQL adjusted space without format.
+--
+\set language lua
+ | ---
+ | - true
+ | ...
+_ = box.schema.space.create('WITHOUT_FORMAT')
+ | ---
+ | ...
+\set language sql
+ | ---
+ | - true
+ | ...
+ALTER TABLE without_format ADD a INT PRIMARY KEY;
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO without_format VALUES (1);
+ | ---
+ | - row_count: 1
+ | ...
+DROP TABLE without_format;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Add to a no-SQL adjusted space with format.
+--
+\set language lua
+ | ---
+ | - true
+ | ...
+with_format = box.schema.space.create('WITH_FORMAT')
+ | ---
+ | ...
+with_format:format{{name = 'A', type = 'unsigned'}}
+ | ---
+ | ...
+\set language sql
+ | ---
+ | - true
+ | ...
+ALTER TABLE with_format ADD b INT PRIMARY KEY;
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO with_format VALUES (1, 1);
+ | ---
+ | - row_count: 1
+ | ...
+DROP TABLE with_format;
+ | ---
+ | - row_count: 1
+ | ...
+
+--
+-- Add multiple columns (with a constraint) inside a transaction.
+--
+CREATE TABLE t2 (a INT PRIMARY KEY)
+ | ---
+ | - row_count: 1
+ | ...
+\set language lua
+ | ---
+ | - true
+ | ...
+box.begin()                                                                     \
+box.execute('ALTER TABLE t2 ADD b INT')                                         \
+box.execute('ALTER TABLE t2 ADD c INT UNIQUE')                                  \
+box.commit()
+ | ---
+ | ...
+\set language sql
+ | ---
+ | - true
+ | ...
+INSERT INTO t2 VALUES (1, 1, 1);
+ | ---
+ | - row_count: 1
+ | ...
+INSERT INTO t2 VALUES (2, 1, 1);
+ | ---
+ | - null
+ | - Duplicate key exists in unique index 'unique_unnamed_T2_2' in space 'T2'
+ | ...
+SELECT * FROM t2;
+ | ---
+ | - metadata:
+ |   - name: A
+ |     type: integer
+ |   - name: B
+ |     type: integer
+ |   - name: C
+ |     type: integer
+ |   rows:
+ |   - [1, 1, 1]
+ | ...
+DROP TABLE t2;
+ | ---
+ | - row_count: 1
+ | ...
diff --git a/test/sql/add-column.test.sql b/test/sql/add-column.test.sql
new file mode 100644
index 000000000..430c7c46a
--- /dev/null
+++ b/test/sql/add-column.test.sql
@@ -0,0 +1,183 @@
+--
+-- gh-3075: Check <ALTER TABLE table ADD COLUMN column> statement.
+--
+CREATE TABLE t1 (a INT PRIMARY KEY);
+
+--
+-- COLUMN keyword is optional. Check it here, but omit it below.
+--
+ALTER TABLE t1 ADD COLUMN b INT;
+
+--
+-- A column with the same name already exists.
+--
+ALTER TABLE t1 ADD b SCALAR;
+
+--
+-- Can't add column to a view.
+--
+CREATE VIEW v AS SELECT * FROM t1;
+ALTER TABLE v ADD c INT;
+
+\set language lua
+view = box.space._space.index[2]:select('V')[1]:totable()
+view_format = view[7]
+f = {type = 'string', nullable_action = 'none', name = 'C', is_nullable = true}
+table.insert(view_format, f)
+view[5] = 3
+view[7] = view_format
+box.space._space:replace(view)
+\set language sql
+
+DROP VIEW v;
+
+--
+-- Check PRIMARY KEY constraint works with an added column.
+--
+CREATE TABLE pk_check (a INT CONSTRAINT pk PRIMARY KEY);
+ALTER TABLE pk_check DROP CONSTRAINT pk;
+ALTER TABLE pk_check ADD b INT PRIMARY KEY;
+INSERT INTO pk_check VALUES (1, 1);
+INSERT INTO pk_check VALUES (1, 1);
+DROP TABLE pk_check;
+
+--
+-- Check UNIQUE constraint works with an added column.
+--
+CREATE TABLE unique_check (a INT PRIMARY KEY);
+ALTER TABLE unique_check ADD b INT UNIQUE;
+INSERT INTO unique_check VALUES (1, 1);
+INSERT INTO unique_check VALUES (2, 1);
+DROP TABLE unique_check;
+
+--
+-- Check CHECK constraint works with an added column.
+--
+CREATE TABLE ck_check (a INT PRIMARY KEY);
+ALTER TABLE ck_check ADD b INT CHECK (b > 0);
+INSERT INTO ck_check VALUES (1, 0);
+INSERT INTO ck_check VALUES (1, 1);
+DROP TABLE ck_check;
+
+--
+-- Check FOREIGN KEY constraint works with an added column.
+--
+CREATE TABLE fk_check (a INT PRIMARY KEY);
+ALTER TABLE fk_check ADD b INT REFERENCES t1(a);
+INSERT INTO fk_check VALUES (0, 1);
+INSERT INTO fk_check VALUES (2, 0);
+INSERT INTO fk_check VALUES (2, 1);
+INSERT INTO t1 VALUES (1, 1);
+INSERT INTO fk_check VALUES (2, 1);
+DROP TABLE fk_check;
+DROP TABLE t1;
+--
+-- Check FOREIGN KEY (self-referenced) constraint works with an
+-- added column.
+--
+CREATE TABLE self (id INT PRIMARY KEY AUTOINCREMENT, a INT UNIQUE)
+ALTER TABLE self ADD b INT REFERENCES self(a)
+INSERT INTO self(a,b) VALUES(1, 1);
+UPDATE self SET a = 2, b = 2;
+UPDATE self SET b = 3;
+UPDATE self SET a = 3;
+DROP TABLE self;
+
+--
+-- Check AUTOINCREMENT works with an added column.
+--
+CREATE TABLE autoinc_check (a INT CONSTRAINT pk PRIMARY KEY);
+ALTER TABLE autoinc_check DROP CONSTRAINT pk;
+ALTER TABLE autoinc_check ADD b INT PRIMARY KEY AUTOINCREMENT;
+INSERT INTO autoinc_check(a) VALUES(1);
+INSERT INTO autoinc_check(a) VALUES(1);
+TRUNCATE TABLE autoinc_check;
+
+--
+-- Can't add second column with AUTOINCREMENT.
+--
+ALTER TABLE autoinc_check ADD c INT AUTOINCREMENT;
+DROP TABLE autoinc_check;
+
+--
+-- Check COLLATE clause works with an added column.
+--
+CREATE TABLE collate_check (a INT PRIMARY KEY);
+ALTER TABLE collate_check ADD b TEXT COLLATE "unicode_ci";
+INSERT INTO collate_check VALUES (1, 'a');
+INSERT INTO collate_check VALUES (2, 'A');
+SELECT * FROM collate_check WHERE b LIKE 'a';
+DROP TABLE collate_check;
+
+--
+-- Check DEFAULT clause works with an added column.
+--
+CREATE TABLE default_check (a INT PRIMARY KEY);
+ALTER TABLE default_check ADD b TEXT DEFAULT ('a');
+INSERT INTO default_check(a) VALUES (1);
+SELECT * FROM default_check;
+DROP TABLE default_check;
+
+--
+-- Check NULL constraint works with an added column.
+--
+CREATE TABLE null_check (a INT PRIMARY KEY);
+ALTER TABLE null_check ADD b TEXT NULL;
+INSERT INTO null_check(a) VALUES (1);
+SELECT * FROM null_check;
+DROP TABLE null_check;
+
+--
+-- Check NOT NULL constraint works with an added column.
+--
+CREATE TABLE notnull_check (a INT PRIMARY KEY);
+ALTER TABLE notnull_check ADD b TEXT NOT NULL;
+INSERT INTO notnull_check(a) VALUES (1);
+INSERT INTO notnull_check VALUES (1, 'not null');
+DROP TABLE notnull_check;
+
+--
+-- Can't add a column with DEAFULT or NULL to a non-empty space.
+-- This ability isn't implemented yet.
+--
+CREATE TABLE non_empty (a INT PRIMARY KEY);
+INSERT INTO non_empty VALUES (1);
+ALTER TABLE non_empty ADD b INT NULL;
+ALTER TABLE non_empty ADD b INT DEFAULT (1);
+DROP TABLE non_empty;
+
+--
+-- Add to a no-SQL adjusted space without format.
+--
+\set language lua
+_ = box.schema.space.create('WITHOUT_FORMAT')
+\set language sql
+ALTER TABLE without_format ADD a INT PRIMARY KEY;
+INSERT INTO without_format VALUES (1);
+DROP TABLE without_format;
+
+--
+-- Add to a no-SQL adjusted space with format.
+--
+\set language lua
+with_format = box.schema.space.create('WITH_FORMAT')
+with_format:format{{name = 'A', type = 'unsigned'}}
+\set language sql
+ALTER TABLE with_format ADD b INT PRIMARY KEY;
+INSERT INTO with_format VALUES (1, 1);
+DROP TABLE with_format;
+
+--
+-- Add multiple columns (with a constraint) inside a transaction.
+--
+CREATE TABLE t2 (a INT PRIMARY KEY)
+\set language lua
+box.begin()                                                                     \
+box.execute('ALTER TABLE t2 ADD b INT')                                         \
+box.execute('ALTER TABLE t2 ADD c INT UNIQUE')                                  \
+box.commit()
+\set language sql
+INSERT INTO t2 VALUES (1, 1, 1);
+INSERT INTO t2 VALUES (2, 1, 1);
+SELECT * FROM t2;
+DROP TABLE t2;
diff --git a/test/sql/checks.result b/test/sql/checks.result
index 7b18e5d6b..3ddd52d42 100644
--- a/test/sql/checks.result
+++ b/test/sql/checks.result
@@ -856,6 +856,26 @@ box.execute("DROP TABLE t6")
 ---
 - row_count: 1
 ...
+--
+-- gh-3075: Check the auto naming of CHECK constraints in
+-- <ALTER TABLE ADD COLUMN>.
+--
+box.execute("CREATE TABLE check_naming (a INT PRIMARY KEY CHECK (a > 0))")
+---
+- row_count: 1
+...
+box.execute("ALTER TABLE check_naming ADD b INT CHECK (b > 0)")
+---
+- row_count: 1
+...
+box.execute("ALTER TABLE check_naming DROP CONSTRAINT \"ck_unnamed_CHECK_NAMING_2\"")
+---
+- row_count: 1
+...
+box.execute("DROP TABLE check_naming")
+---
+- row_count: 1
+...
 test_run:cmd("clear filter")
 ---
 - true
diff --git a/test/sql/checks.test.lua b/test/sql/checks.test.lua
index 301f8ea69..a79131466 100644
--- a/test/sql/checks.test.lua
+++ b/test/sql/checks.test.lua
@@ -280,4 +280,13 @@ box.func.MYFUNC:drop()
 box.execute("INSERT INTO t6 VALUES(11);");
 box.execute("DROP TABLE t6")
 
+--
+-- gh-3075: Check the auto naming of CHECK constraints in
+-- <ALTER TABLE ADD COLUMN>.
+--
+box.execute("CREATE TABLE check_naming (a INT PRIMARY KEY CHECK (a > 0))")
+box.execute("ALTER TABLE check_naming ADD b INT CHECK (b > 0)")
+box.execute("ALTER TABLE check_naming DROP CONSTRAINT \"ck_unnamed_CHECK_NAMING_2\"")
+box.execute("DROP TABLE check_naming")
+
 test_run:cmd("clear filter")
diff --git a/test/sql/foreign-keys.result b/test/sql/foreign-keys.result
index 33689a06e..9ba995579 100644
--- a/test/sql/foreign-keys.result
+++ b/test/sql/foreign-keys.result
@@ -499,5 +499,33 @@ box.space.S:drop()
 box.space.T:drop()
 ---
 ...
+--
+-- gh-3075: Check the auto naming of FOREIGN KEY constraints in
+-- <ALTER TABLE ADD COLUMN>.
+--
+box.execute("CREATE TABLE t1 (a INT PRIMARY KEY)")
+---
+- row_count: 1
+...
+box.execute("CREATE TABLE check_naming (a INT PRIMARY KEY REFERENCES t1(a))")
+---
+- row_count: 1
+...
+box.execute("ALTER TABLE check_naming ADD b INT REFERENCES t1(a)")
+---
+- row_count: 1
+...
+box.execute("ALTER TABLE check_naming DROP CONSTRAINT \"fk_unnamed_CHECK_NAMING_2\"")
+---
+- row_count: 1
+...
+box.execute("DROP TABLE check_naming")
+---
+- row_count: 1
+...
+box.execute("DROP TABLE t1")
+---
+- row_count: 1
+...
 --- Clean-up SQL DD hash.
 -test_run:cmd('restart server default with cleanup=1')
diff --git a/test/sql/foreign-keys.test.lua b/test/sql/foreign-keys.test.lua
index d2dd88d28..29918c5d4 100644
--- a/test/sql/foreign-keys.test.lua
+++ b/test/sql/foreign-keys.test.lua
@@ -209,5 +209,16 @@ box.space.T:select()
 box.space.S:drop()
 box.space.T:drop()
 
+--
+-- gh-3075: Check the auto naming of FOREIGN KEY constraints in
+-- <ALTER TABLE ADD COLUMN>.
+--
+box.execute("CREATE TABLE t1 (a INT PRIMARY KEY)")
+box.execute("CREATE TABLE check_naming (a INT PRIMARY KEY REFERENCES t1(a))")
+box.execute("ALTER TABLE check_naming ADD b INT REFERENCES t1(a)")
+box.execute("ALTER TABLE check_naming DROP CONSTRAINT \"fk_unnamed_CHECK_NAMING_2\"")
+box.execute("DROP TABLE check_naming")
+box.execute("DROP TABLE t1")
+
 --- Clean-up SQL DD hash.
 -test_run:cmd('restart server default with cleanup=1')