diff options
Diffstat (limited to 'mysql-test/t/case.test')
| -rw-r--r-- | mysql-test/t/case.test | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/mysql-test/t/case.test b/mysql-test/t/case.test index ac60d7298ce..e942333d5fe 100644 --- a/mysql-test/t/case.test +++ b/mysql-test/t/case.test @@ -58,7 +58,10 @@ CREATE TABLE t1 SELECT CASE WHEN 1 THEN 1.0 ELSE 'a' END AS c6, CASE WHEN 1 THEN 1 ELSE 1.0 END AS c7, CASE WHEN 1 THEN 1.0 ELSE 1 END AS c8, - CASE WHEN 1 THEN 1.0 END AS c9 + CASE WHEN 1 THEN 1.0 END AS c9, + CASE WHEN 1 THEN 0.1e1 else 0.1 END AS c10, + CASE WHEN 1 THEN 0.1e1 else 1 END AS c11, + CASE WHEN 1 THEN 0.1e1 else '1' END AS c12 ; SHOW CREATE TABLE t1; DROP TABLE t1; @@ -118,3 +121,22 @@ SELECT CASE LOWER('1') WHEN LOWER('2') THEN 'BUG' ELSE 'nobug' END; SELECT 'case+union+test' UNION SELECT CASE '1' WHEN '2' THEN 'BUG' ELSE 'nobug' END; + +# +# Tests for bug #9939: conversion of the arguments for COALESCE and IFNULL +# + +CREATE TABLE t1 (EMPNUM INT); +INSERT INTO t1 VALUES (0), (2); +CREATE TABLE t2 (EMPNUM DECIMAL (4, 2)); +INSERT INTO t2 VALUES (0.0), (9.0); + +SELECT COALESCE(t2.EMPNUM,t1.EMPNUM) AS CEMPNUM, + t1.EMPNUM AS EMPMUM1, t2.EMPNUM AS EMPNUM2 + FROM t1 LEFT JOIN t2 ON t1.EMPNUM=t2.EMPNUM; + +SELECT IFNULL(t2.EMPNUM,t1.EMPNUM) AS CEMPNUM, + t1.EMPNUM AS EMPMUM1, t2.EMPNUM AS EMPNUM2 + FROM t1 LEFT JOIN t2 ON t1.EMPNUM=t2.EMPNUM; + +DROP TABLE t1,t2; |