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Merge from 5.1-bugteam

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Staale Smedseng
2009-08-30 19:01:48 +02:00
parent f59ef9eafa 6070491d4e
commit 7aa88fcb95
14 changed files with 185 additions and 13 deletions
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12
sql/opt_range.cc
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@ -9638,7 +9638,17 @@ check_group_min_max_predicates(COND *cond, Item_field *min_max_arg_item,
*/
if (cond_type == Item::SUBSELECT_ITEM)
DBUG_RETURN(FALSE);
/*
Condition of the form 'field' is equivalent to 'field <> 0' and thus
satisfies the SA3 condition.
*/
if (cond_type == Item::FIELD_ITEM)
{
DBUG_PRINT("info", ("Analyzing: %s", cond->full_name()));
DBUG_RETURN(TRUE);
}
/* We presume that at this point there are no other Items than functions. */
DBUG_ASSERT(cond_type == Item::FUNC_ITEM);