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Merge branch 10.2 into 10.3

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This commit is contained in:
Julius Goryavsky
2021-12-23 14:14:04 +01:00
parent a5ef74e7eb 12087d6757
commit 3376668ca8
28 changed files with 385 additions and 126 deletions
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23
mysql-test/main/order_by_innodb.result
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@ -198,5 +198,28 @@ id id
1 NULL
2 1
3 3
#
# MDEV-27270: Wrong query plan with Range Checked for Each Record and ORDER BY ... LIMIT
#
# This must NOT have "Range checked for each record" without any
# provisions to produce rows in the required ordering:
explain
select
t1.id,t2.id
from
t1 left join
t2 on t2.id2 = t1.id and
t2.id = (select dd.id
from t2 dd
where
dd.id2 = t1.id and
d1 > '2019-02-06 00:00:00'
order by
dd.d1, dd.d2, dd.id limit 1
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL PRIMARY 4 NULL # Using index
1 PRIMARY t2 eq_ref PRIMARY,id2 PRIMARY 4 func # Using where
2 DEPENDENT SUBQUERY dd range id2,for_latest_sort for_latest_sort 6 NULL # Using where
drop table t1,t2;
# End of 10.2 tests