database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

MDEV-31224 Crash with EXPLAIN EXTENDED for multi-table update of system table

Browse Source 
EXPLAIN EXTENDED should always print the field item used in the left part
of an equality expression from the SET clause of an update statement as a
reference to table column.

Approved by Oleksandr Byelkin <sanja@mariadb.com>
This commit is contained in:
Igor Babaev
2023-05-09 21:20:10 -07:00
committed by Sergei Golubchik
parent 54324e542f
commit aa713f5ae2
4 changed files with 42 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
sql/sql_select.cc
View File

@ -28138,7 +28138,7 @@ void st_select_lex::print_set_clause(THD *thd, String *str,
else
str->append(',');
item->print(str, query_type);
item->print(str, (enum_query_type) (query_type | QT_NO_DATA_EXPANSION));
str->append(STRING_WITH_LEN(" = "));
val->print(str, query_type);
}