database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-08-08 11:22:35 +03:00
Code Activity

Merge branch '10.4' into 10.5

Browse Source
This commit is contained in:
Oleksandr Byelkin
2021-07-31 23:19:51 +02:00
parent a49f5525bb 7841a7eb09
commit ae6bdc6769
345 changed files with 7745 additions and 2127 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
sql/sql_lex.h
View File

@@ -1022,20 +1022,7 @@ public:
int save_union_explain_part2(Explain_query *output);
unit_common_op common_op();
bool explainable() const
{
/*
EXPLAIN/ANALYZE unit, when:
(1) if it's a subquery - it's not part of eliminated WHERE/ON clause.
(2) if it's a CTE - it's not hanging (needed for execution)
(3) if it's a derived - it's not merged
if it's not 1/2/3 - it's some weird internal thing, ignore it
*/
return item ? !item->eliminated : // (1)
with_element ? derived && derived->derived_result : // (2)
derived ? derived->is_materialized_derived() : // (3)
false;
}
bool explainable() const;
void reset_distinct();
void fix_distinct();