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MDEV-18923 Assertion `!lex_string_cmp(system_charset_info, fk_info->referenced_table, &table->s->table_name)' failed in fk_truncate_illegal_if_parent

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don't assert the correctness of FK constraints, as it can be
broken under `SET FOREIGN_KEY_CHECKS= OFF`
This commit is contained in:
Sergei Golubchik
2019-04-03 10:57:45 +02:00
parent d5da8ae04d
commit 81a8d8be76
3 changed files with 34 additions and 9 deletions
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14
sql/sql_truncate.cc
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@ -150,15 +150,11 @@ fk_truncate_illegal_if_parent(THD *thd, TABLE *table)
/* Loop over the set of foreign keys for which this table is a parent. */
while ((fk_info= it++))
{
DBUG_ASSERT(!my_strcasecmp(system_charset_info,
fk_info->referenced_db->str,
table->s->db.str));
DBUG_ASSERT(!my_strcasecmp(system_charset_info,
fk_info->referenced_table->str,
table->s->table_name.str));
if (my_strcasecmp(system_charset_info, fk_info->foreign_db->str,
if (my_strcasecmp(system_charset_info, fk_info->referenced_db->str,
table->s->db.str) ||
my_strcasecmp(system_charset_info, fk_info->referenced_table->str,
table->s->table_name.str) ||
my_strcasecmp(system_charset_info, fk_info->foreign_db->str,
table->s->db.str) ||
my_strcasecmp(system_charset_info, fk_info->foreign_table->str,
table->s->table_name.str))