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| author | Igor Babaev <igor@askmonty.org> | 2017-06-07 22:54:57 -0700 |
|---|---|---|
| committer | Igor Babaev <igor@askmonty.org> | 2017-06-07 22:54:57 -0700 |
| commit | b850fc66ca72ed9b63cb8b899b64f8c555a525c7 (patch) | |
| tree | 157ec5f7e859fdf4e5b24fe7deb5a3db01c436a2 /sql | |
| parent | 151f4e9b4adea020fbe19b640016845dfa65d820 (diff) | |
| download | mariadb-git-b850fc66ca72ed9b63cb8b899b64f8c555a525c7.tar.gz | |
Fixed the bug mdev-12855.
This is actually a legacy bug:
SQL_SELECT::test_quick_select() was called
with SQL_SELECT::head not set.
It looks like that this problem can be
reproduced only on queries with ORDER BY
that use IN predicates converted to semi-joins.
Diffstat (limited to 'sql')
| -rw-r--r-- | sql/sql_select.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index f2be17f71d6..720c0a22681 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -2759,8 +2759,11 @@ JOIN::exec() if (sort_table_cond) { if (!curr_table->select) + { if (!(curr_table->select= new SQL_SELECT)) DBUG_VOID_RETURN; + curr_table->select->head= curr_table->table; + } if (!curr_table->select->cond) curr_table->select->cond= sort_table_cond; else @@ -2846,7 +2849,7 @@ JOIN::exec() curr_join->select_limit, (select_options & OPTION_FOUND_ROWS ? HA_POS_ERROR : unit->select_limit_cnt), - curr_join->group_list ? TRUE : FALSE)) + curr_join->group_list ? FALSE : TRUE)) DBUG_VOID_RETURN; sortorder= curr_join->sortorder; if (curr_join->const_tables != curr_join->table_count && |