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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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2
mysql-test/suite/versioning/r/delete_history.result
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@ -171,6 +171,8 @@ x
explain extended delete history from t1 before system_time '2039-01-01 23:00';
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 1 100.00 Using where
Warnings:
Note 1003 delete from `test`.`t1` FOR SYSTEM_TIME BEFORE TIMESTAMP '2039-01-01 23:00' where `test`.`t1`.`row_end` < '2039-01-01 23:00' and is_history(`test`.`t1`.`row_end`)
create or replace procedure p() delete history from t1 before system_time '2039-01-01 23:00';
call p;
select * from t1;