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Merge 10.2 into 10.3

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Marko Mäkelä 2019-04-25 09:05:52 +03:00
commit acf6f92aa9
60 changed files with 1130 additions and 287 deletions
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14
mysql-test/main/order_by.test
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@ -2187,3 +2187,17 @@ eval explain extended $q;
set optimizer_switch= @save_optimizer_switch;
DROP TABLE books, wings;
--echo #
--echo # MDEV-17796: query with DISTINCT, GROUP BY and ORDER BY
--echo #
CREATE TABLE t1 (id int, gr int, v1 varchar(10));
INSERT INTO t1 VALUES (1,1,'A'), (2,2,'B'), (3,3,NULL), (4,4,'C');
SELECT DISTINCT NULLIF(GROUP_CONCAT(v1), null) FROM t1
WHERE gr in (4,2)
GROUP BY id
ORDER BY id+1 DESC;
DROP TABLE t1;