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Manual merge

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This commit is contained in:
igor@igor-inspiron.creware.com
2005-06-13 11:45:29 -07:00
parent df93c2783f 754e6c0527
commit 785fca1162
3 changed files with 24 additions and 16 deletions
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13
mysql-test/r/func_if.result
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@ -108,3 +108,16 @@ id date_ord text
2 16-03-2005 Day 2
1 05-03-2005 Day 1
DROP TABLE t1;
CREATE TABLE t1 (a CHAR(10));
INSERT INTO t1 VALUES ('aaa'), (NULL), (''), ('bbb');
SELECT a, NULLIF(a,'') FROM t1;
a NULLIF(a,'')
aaa aaa
NULL NULL
NULL
bbb bbb
SELECT a, NULLIF(a,'') FROM t1 WHERE NULLIF(a,'') IS NULL;
a NULLIF(a,'')
NULL NULL
NULL
DROP TABLE t1;