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MWL#89

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- Added regression test with queries over the WORLD database.
- Discovered and fixed several bugs in the related cost calculation
  functionality both in the semijoin and non-semijon subquery code.
- Added DBUG printing of the cost variables used to decide between
  IN-EXISTS and MATERIALIZATION.
This commit is contained in:
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2011-06-21 15:50:07 +03:00
parent 0cf912c23f
commit a02682abcc
7 changed files with 1001 additions and 3989 deletions
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2
sql/sql_select.cc
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@@ -5969,7 +5969,7 @@ void JOIN::get_partial_cost_and_fanout(uint end_tab_idx,
}
for (tab= first_depth_first_tab(this), i= const_tables;
tab;
(i <= end_tab_idx && tab);
tab= next_depth_first_tab(this, tab), i++)
{
/*