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Fixed LP bug #806097.

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The value of THD::used tables should be re-evaluated after merges
of views and derived tables into the main query. 
Now it's done in the function SELECT_LEX::update_used_tables.
The re-evaluation of the 'used_table' bitmaps for the items
in HAVING, GROUP BY and ORDER BY clauses has been added as well.
This commit is contained in:
Igor Babaev
2011-07-09 22:34:56 -07:00
parent 9e7495df83
commit a515802c5b
5 changed files with 103 additions and 2 deletions
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4
mysql-test/r/func_gconcat.result
View File

@@ -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
2 DERIVED td ALL NULL NULL NULL NULL 2 100.00 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)
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