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MDEV-26456: SIGSEGV in flush_tables_with_read_lock on FLUSH TABLE

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It is legal that open table can leave unopened tables in SP and other
parts of the code shoud expect it.
This commit is contained in:
Oleksandr Byelkin
2022-07-20 14:13:07 +02:00
parent 0ea221e12b
commit 654236c06d
3 changed files with 35 additions and 0 deletions
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2
sql/sql_reload.cc
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@ -601,6 +601,7 @@ bool flush_tables_with_read_lock(THD *thd, TABLE_LIST *all_tables)
if (table_list->is_view_or_derived())
continue;
if (thd->lex->type & REFRESH_FOR_EXPORT &&
table_list->table &&
!(table_list->table->file->ha_table_flags() & HA_CAN_EXPORT))
{
my_error(ER_ILLEGAL_HA, MYF(0),table_list->table->file->table_type(),
@ -608,6 +609,7 @@ bool flush_tables_with_read_lock(THD *thd, TABLE_LIST *all_tables)
goto error_reset_bits;
}
if (thd->lex->type & REFRESH_READ_LOCK &&
table_list->table &&
table_list->table->file->extra(HA_EXTRA_FLUSH))
goto error_reset_bits;
}