Details
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Type:
Task
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Fix Version/s: 10.0.2
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Component/s: None
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Labels:None
Description
Also see http://ru-mysql.livejournal.com/287623.html?nojs=1
Patch is like this (+ variable to control)
bell@desktop:~/maria/bzr/work-maria-5.5-test/mysql-test$ bzr diff
=== modified file 'sql/sql_lex.cc'
— sql/sql_lex.cc 2012-08-27 16:13:17 +0000
+++ sql/sql_lex.cc 2012-11-16 09:48:33 +0000
@@ -2578,6 +2578,7 @@ bool LEX::can_be_merged()
if (tmp_unit->first_select()->parent_lex == this &&
(tmp_unit->item == 0 ||
(tmp_unit->item->place() != IN_WHERE &&
+ tmp_unit->item->place() != SELECT_LIST &&
tmp_unit->item->place() != IN_ON)))
{
selects_allow_merge= 0;
then use random Query Generator to test it.
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pushed
Looking on test cases and manual it looks like test for merge was mixed with test for updateability in this case.