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Diffstat (limited to 'sql/sql_union.cc')
-rw-r--r-- | sql/sql_union.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sql/sql_union.cc b/sql/sql_union.cc index 0f218b73b16..286adb8b257 100644 --- a/sql/sql_union.cc +++ b/sql/sql_union.cc @@ -1740,6 +1740,7 @@ bool st_select_lex_unit::exec() if (describe) { /* + UglySubqueryReoptimization: In EXPLAIN command, constant subqueries that do not use any tables are executed two times: - 1st time is a real evaluation to get the subquery value |