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MDEV-30539 EXPLAIN EXTENDED: no message with queries for DML statements

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EXPLAIN EXTENDED for an UPDATE/DELETE/INSERT/REPLACE statement did not
produce the warning containing the text representation of the query
obtained after the optimization phase. Such warning was produced for
SELECT statements, but not for DML statements.
The patch fixes this defect of EXPLAIN EXTENDED for DML statements.
This commit is contained in:
Igor Babaev
2023-03-22 21:59:18 -07:00
parent 011261f4e9
commit f33fc2fae5
18 changed files with 565 additions and 59 deletions
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6
sql/sql_lex.h
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@ -1417,6 +1417,10 @@ public:
}
bool setup_ref_array(THD *thd, uint order_group_num);
void print(THD *thd, String *str, enum_query_type query_type);
void print_item_list(THD *thd, String *str, enum_query_type query_type);
void print_set_clause(THD *thd, String *str, enum_query_type query_type);
void print_on_duplicate_key_clause(THD *thd, String *str,
enum_query_type query_type);
static void print_order(String *str,
ORDER *order,
enum_query_type query_type);
@ -3493,6 +3497,8 @@ public:
Window_frame_bound *frame_bottom_bound;
Window_spec *win_spec;
Item *upd_del_where;
/* System Versioning */
vers_select_conds_t vers_conditions;
vers_select_conds_t period_conditions;