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when printing Item_in_optimizer, use precedence of wrapped Item

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when Item::print() is called with the QT_PARSABLE flag, WHERE i NOT IN
(SELECT ...) gets printed as WHERE !i IN (SELECT ...) instead of WHERE
!(i in (SELECT ...)) because Item_in_optimizer returns DEFAULT_PRECEDENCE.
it should return the precedence of the inner operation.
This commit is contained in:
Sidney Cammeresi
2020-06-12 10:23:46 -07:00
parent ab9bd6284c
commit 114a843669
5 changed files with 11 additions and 10 deletions
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8
mysql-test/main/subselect_no_scache.result
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@@ -1619,7 +1619,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index
2 SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index
@@ -1631,13 +1631,13 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index
2 SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index
2 SUBQUERY t2 index_subquery s1 s1 6 func 2 50.00 Using index; Using where; Full scan on NULL key
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where `test`.`t2`.`s1` < 'a2' having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1`
Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where `test`.`t2`.`s1` < 'a2' having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1`
drop table t1,t2;
create table t2 (a int, b int not null);
create table t3 (a int);
@@ -1892,7 +1892,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 12 100.00 Using where
2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index; Using where
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where !<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where `test`.`t1`.`id` < 8 and <cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`)))
Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where !(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where `test`.`t1`.`id` < 8 and <cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`))))
explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY tt ALL NULL NULL NULL NULL 12 100.00 Using where