[tarantool-patches] Re: [PATCH v2 4/5] sql: remove file zErrMsg of struct Parse
Imeev Mergen
imeevma at tarantool.org
Tue Feb 26 18:36:41 MSK 2019
Hi! Thank you for review! My answers below.
On 2/26/19 5:47 PM, n.pettik wrote:
>> diff --git a/src/box/sql.c b/src/box/sql.c
>> index 580f3fa..116e3e8 100644
>> --- a/src/box/sql.c
>> +++ b/src/box/sql.c
>> @@ -1362,13 +1362,8 @@ sql_checks_resolve_space_def_reference(ExprList *expr_list,
>> parser.parse_only = true;
>>
>> sql_resolve_self_reference(&parser, def, NC_IsCheck, NULL, expr_list);
>> - int rc = 0;
>> - if (parser.rc != SQL_OK) {
>> - /* Tarantool error may be already set with diag. */
>> - if (parser.rc != SQL_TARANTOOL_ERROR)
>> - diag_set(ClientError, ER_SQL, parser.zErrMsg);
>> - rc = -1;
>> - }
>> + if (parser.rc != SQL_OK)
>> + return -1;
> Since now we have only one possible RC, lets remove
> its name and simply check (parser.rc != 0).
> Or, as suggested Konstantin, better replace rc with bool is_aborted flag.
Do you mind if I do this in a new patch?
>
>> sql_parser_destroy(&parser);
>> - return rc;
>> + return 0;
>> }
>> diff --git a/src/box/sql/build.c b/src/box/sql/build.c
>> index deb5b89..6afca4a 100644
>> --- a/src/box/sql/build.c
>> +++ b/src/box/sql/build.c
>> @@ -493,16 +493,10 @@ sql_column_add_nullable_action(struct Parse *parser,
>> struct field_def *field = &def->fields[def->field_count - 1];
>> if (field->nullable_action != ON_CONFLICT_ACTION_DEFAULT &&
>> nullable_action != field->nullable_action) {
>> - /* Prevent defining nullable_action many times. */
>> - const char *err_msg =
>> - tt_sprintf("NULL declaration for column '%s' of table "
>> - "'%s' has been already set to '%s'",
>> - field->name, def->name,
>> - on_conflict_action_strs[field->
>> - nullable_action]);
>> - diag_set(ClientError, ER_SQL, err_msg);
>> - parser->rc = SQL_TARANTOOL_ERROR;
>> - parser->nErr++;
>> + sqlErrorMsg(parser, "NULL declaration for column '%s' of "\
>> + "table '%s' has been already set to '%s'",
>> + field->name, def->name,
>> + on_conflict_action_strs[field-> nullable_action]);
> This looks like step back in our attempt at using diag_set.
> We do you need to incapsulate diag into sqlErrorMsg?
I thought that it was good idea to incapsulate all SQL errors that
cannot be fixed in just parse_context->rc = SQL_TARANTOOL_ERROR
and diag_set(). Here it uses tt_printf() in addition to these two
commands.
>
>> return;
>> }
>> field->nullable_action = nullable_action;
>> diff --git a/src/box/sql/delete.c b/src/box/sql/delete.c
>> index 5170c7f..a7bf3b3 100644
>> --- a/src/box/sql/delete.c
>> +++ b/src/box/sql/delete.c
>> @@ -94,31 +94,22 @@ sql_table_truncate(struct Parse *parse, struct SrcList *tab_list)
>> struct space *space = space_by_name(tab_name);
>> if (space == NULL) {
>> diag_set(ClientError, ER_NO_SUCH_SPACE, tab_name);
>> - goto tarantool_error;
>> + sql_parser_error(parse);
> Look, anyway you remove this function in next commit.
> Next time please consider order of refactoring.
You are right, I will return to what was before and refactor in
the next commit.
>
>> }
>> if (! rlist_empty(&space->parent_fk_constraint)) {
>> - const char *err_msg =
>> - tt_sprintf("can not truncate space '%s' because other "
>> - "objects depend on it", space->def->name);
>> - diag_set(ClientError, ER_SQL, err_msg);
>> - goto tarantool_error;
>> + sqlErrorMsg(parse, "can not truncate space '%s' because other "
>> + "objects depend on it", space->def->name);
> Replace invocation of sqlErrorMsg with diag_set + parser->rc.
> The same in other places.
Answer is the same as in second question.
>
>> @@ -146,11 +145,7 @@ sqlPrepare(sql * db, /* Database handle. */
>> *ppStmt = (sql_stmt *) sParse.pVdbe;
>> }
>>
>> - if (zErrMsg) {
>> - sqlErrorWithMsg(db, rc, "%s", zErrMsg);
>> - } else {
>> - sqlError(db, rc);
>> - }
>> + sqlError(db, rc);
> sqlError seems to be useless/dead. Please, make a note somewhere
> to remove it as follow-up to error-refactoring patch-set.
Do you mind if I do this in a new patch?
>
>
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