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| author | Oleksandr Byelkin <sanja@mariadb.com> | 2018-05-22 19:08:39 +0200 |
|---|---|---|
| committer | Oleksandr Byelkin <sanja@mariadb.com> | 2018-07-04 19:13:55 +0200 |
| commit | de745ecf29721795710910a19bd0ea3389da804c (patch) | |
| tree | d5beaf48411123b9212a024480e495f1774c633c /sql/opt_subselect.cc | |
| parent | 1b981b9edb419e2ac3be1d6e007192a827504185 (diff) | |
| download | mariadb-git-de745ecf29721795710910a19bd0ea3389da804c.tar.gz | |
MDEV-11953: support of brackets in UNION/EXCEPT/INTERSECT operations
Diffstat (limited to 'sql/opt_subselect.cc')
| -rw-r--r-- | sql/opt_subselect.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sql/opt_subselect.cc b/sql/opt_subselect.cc index ba57d9d3ca4..efc38e5fe66 100644 --- a/sql/opt_subselect.cc +++ b/sql/opt_subselect.cc @@ -518,6 +518,7 @@ bool is_materialization_applicable(THD *thd, Item_in_subselect *in_subs, if (optimizer_flag(thd, OPTIMIZER_SWITCH_MATERIALIZATION) && // 0 !child_select->is_part_of_union() && // 1 parent_unit->first_select()->leaf_tables.elements && // 2 + child_select->outer_select() && child_select->outer_select()->leaf_tables.elements && // 2A subquery_types_allow_materialization(in_subs) && (in_subs->is_top_level_item() || //3 |