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MDEV-13720 Server crashes in SEQUENCE::write_lock for temporary tables

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This happens when doing NEXT VALUE for a temporary table
Fixed by giving ER_NOT_SEQUENCE when trying to use normal temporary table with
sequence functions

Signed-off-by: Monty <monty@mariadb.org>
This commit is contained in:
Aleksey Midenkov
2017-10-14 17:31:57 +03:00
committed by Monty
parent eea07f5f58
commit 1355fadb59
3 changed files with 21 additions and 0 deletions
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5
sql/sql_base.cc
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@ -3341,6 +3341,11 @@ open_and_process_table(THD *thd, LEX *lex, TABLE_LIST *tables,
temporary table or SEQUENCE (see sequence_insert()).
*/
DBUG_ASSERT(is_temporary_table(tables) || tables->table->s->sequence);
if (tables->sequence && tables->table->s->table_type != TABLE_TYPE_SEQUENCE)
{
my_error(ER_NOT_SEQUENCE, MYF(0), tables->db, tables->alias);
DBUG_RETURN(true);
}
}
else if (tables->open_type == OT_TEMPORARY_ONLY)
{