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MDEV-16507 SIGSEGV when use_stat_tables = preferably and

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optimizer_use_condition_selectivity = 4

It does not makes sense to try to read statistics for temporary tables
because it's not collected.
This commit is contained in:
Igor Babaev 2018-06-23 19:36:26 -07:00
commit 364a20fe0b
3 changed files with 48 additions and 4 deletions
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8
sql/sql_statistics.cc
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@ -2952,7 +2952,7 @@ bool statistics_for_tables_is_needed(THD *thd, TABLE_LIST *tables)
for (TABLE_LIST *tl= tables; tl; tl= tl->next_global)
{
if (!tl->is_view_or_derived() && tl->table)
if (!tl->is_view_or_derived() && !is_temporary_table(tl) && tl->table)
{
TABLE_SHARE *table_share= tl->table->s;
if (table_share &&
@ -2964,7 +2964,7 @@ bool statistics_for_tables_is_needed(THD *thd, TABLE_LIST *tables)
for (TABLE_LIST *tl= tables; tl; tl= tl->next_global)
{
if (!tl->is_view_or_derived() && tl->table)
if (!tl->is_view_or_derived() && !is_temporary_table(tl) && tl->table)
{
TABLE_SHARE *table_share= tl->table->s;
if (table_share &&
@ -3093,7 +3093,7 @@ int read_statistics_for_tables_if_needed(THD *thd, TABLE_LIST *tables)
for (TABLE_LIST *tl= tables; tl; tl= tl->next_global)
{
if (!tl->is_view_or_derived() && tl->table)
if (!tl->is_view_or_derived() && !is_temporary_table(tl) && tl->table)
{
TABLE_SHARE *table_share= tl->table->s;
if (table_share &&
@ -3867,4 +3867,4 @@ bool is_stat_table(const char *db, const char *table)
}
}
return false;
}
}