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Fixed that NULL and 0 returns 0 instead of NULL
This is coded to not cause a speed impact on top level AND expressions where we don't care if an AND expression returns 0 or NULL mysql-test/r/bdb.result: Fix results after serges last patch mysql-test/r/innodb.result: Fix results after serges last patch mysql-test/r/null.result: Update for new AND handling of NULL scripts/mysqld_safe.sh: Fix 'isroot' test to work even if user is not root sql/item.h: Fixed that NULL and 0 returns 0 instead of NULL sql/item_cmpfunc.cc: Fixed that NULL and 0 returns 0 instead of NULL sql/item_cmpfunc.h: Fixed that NULL and 0 returns 0 instead of NULL sql/sql_base.cc: Fixed that NULL and 0 returns 0 instead of NULL sql/sql_parse.cc: Fixed that NULL and 0 returns 0 instead of NULL sql/sql_select.cc: Fixed that NULL and 0 returns 0 instead of NULL sql/sql_yacc.yy: Fixed that NULL and 0 returns 0 instead of NULL
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@ -30,7 +30,7 @@ SELECT (NULL OR NULL) IS NULL;
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1
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select NULL AND 0, 0 and NULL;
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NULL AND 0 0 and NULL
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NULL 0
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0 0
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select inet_ntoa(null),inet_aton(null),inet_aton("122.256"),inet_aton("122.226."),inet_aton("");
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inet_ntoa(null) inet_aton(null) inet_aton("122.256") inet_aton("122.226.") inet_aton("")
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NULL NULL NULL NULL NULL
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