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MDEV-536: LP:1050806 - different result for a query using subquery, and

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MDEV-567: Wrong result from a query with correlated subquery if ICP is allowed:

backport the fix developed for SHOW EXPLAIN: 

revision-id: psergey@askmonty.org-20120719115219-212cxmm6qvf0wlrb
branch nick: 5.5-show-explain-r21
timestamp: Thu 2012-07-19 15:52:19 +0400
  BUG#992942 & MDEV-325: Pre-liminary commit for testing

and adjust it so that it handles DS-MRR scans correctly.
This commit is contained in:
Sergey Petrunya
2012-11-04 19:09:46 +04:00
parent 25b5831a77
commit 39e7072d64
5 changed files with 344 additions and 14 deletions
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7
sql/opt_range.cc
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@@ -10944,6 +10944,13 @@ int QUICK_RANGE_SELECT::reset()
DBUG_ENTER("QUICK_RANGE_SELECT::reset");
last_range= NULL;
cur_range= (QUICK_RANGE**) ranges.buffer;
if (file->inited == handler::RND)
{
/* Handler could be left in this state by MRR */
if ((error= file->ha_rnd_end()))
DBUG_RETURN(error);
}
if (file->inited == handler::NONE)
{