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Merge of the mwl106 tree into the latest 5.3 tree.

Resolved conflicts. Adjusted some test results
This commit is contained in:
Igor Babaev
2010-09-23 08:10:53 -07:00
72 changed files with 4103 additions and 928 deletions

View File

@ -983,10 +983,10 @@ INSERT INTO t1 VALUES (),();
EXPLAIN EXTENDED SELECT 1 FROM
(SELECT DISTINCT GROUP_CONCAT(td.f1) FROM t1,t1 AS td GROUP BY td.f1) AS d,t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived2> system NULL NULL NULL NULL 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort; Distinct
2 DERIVED td ALL NULL NULL NULL NULL 2 100.00 Distinct; Using join buffer
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 100.00 Using join buffer
2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort
2 DERIVED td ALL NULL NULL NULL NULL 2 100.00 Using join buffer
Warnings:
Note 1003 select 1 AS `1` from (select distinct group_concat(`test`.`td`.`f1` separator ',') AS `GROUP_CONCAT(td.f1)` from `test`.`t1` join `test`.`t1` `td` group by `test`.`td`.`f1`) `d` join `test`.`t1`
SELECT 1 FROM
@ -1004,7 +1004,7 @@ EXPLAIN EXTENDED SELECT 1 FROM
(SELECT GROUP_CONCAT(t1.a ORDER BY t1.a ASC) FROM
t1 t2, t1 GROUP BY t1.a) AS d;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived2> system NULL NULL NULL NULL 1 100.00
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 100.00
2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort
2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using join buffer
Warnings: