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Outer joins cleanup: Remove TABLE::outer_join and use TABLE::maybe_null only (2nd patch after Monty's comments).

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sergefp@mysql.com
2005-02-05 18:16:29 +03:00
parent b823638f38
commit bc1fdfa402
5 changed files with 15 additions and 12 deletions
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2
sql/opt_range.cc
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@ -3611,7 +3611,7 @@ get_mm_leaf(PARAM *param, COND *conf_func, Field *field, KEY_PART *key_part,
if (!value) // IS NULL or IS NOT NULL
{
if (field->table->outer_join) // Can't use a key on this
if (field->table->maybe_null) // Can't use a key on this
DBUG_RETURN(0);
if (!maybe_null) // Not null field
DBUG_RETURN(type == Item_func::ISNULL_FUNC ? &null_element : 0);