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Fixed LP bug #809206.

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The bitmap of used tables must be evaluated for the select list of every
materialized derived table / view and saved in a dedicated field.
This is also applied to materialized subqueries.
This commit is contained in:
Igor Babaev
2011-07-12 23:47:35 -07:00
parent 419c20f10a
commit 5819dfcdf6
6 changed files with 113 additions and 12 deletions
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4
mysql-test/r/func_gconcat.result
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@@ -985,8 +985,8 @@ EXPLAIN EXTENDED SELECT 1 FROM
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 100.00 Using join buffer (flat, BNL join)
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 (flat, BNL join)
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 (flat, BNL join)
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