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| author | Gleb Shchepa <gshchepa@mysql.com> | 2008-10-10 15:13:12 +0500 |
|---|---|---|
| committer | Gleb Shchepa <gshchepa@mysql.com> | 2008-10-10 15:13:12 +0500 |
| commit | 8bfbcbd98172ac936ff13ef97f2662cd6bc9a2c7 (patch) | |
| tree | 2efe1de3ae86c64e7cf0f0a286c7979d507d7d64 /mysql-test/r/metadata.result | |
| parent | 5a3086221d79fc1b6b2c9c2b9bdb154759649063 (diff) | |
| download | mariadb-git-8bfbcbd98172ac936ff13ef97f2662cd6bc9a2c7.tar.gz | |
Bug #39283: Date returned as VARBINARY to client for queries
with COALESCE and JOIN
The server returned to a client the VARBINARY column type
instead of the DATE type for a result of the COALESCE,
IFNULL, IF, CASE, GREATEST or LEAST functions if that result
was filesorted in an anonymous temporary table during
the query execution.
For example:
SELECT COALESCE(t1.date1, t2.date2) AS result
FROM t1 JOIN t2 ON t1.id = t2.id ORDER BY result;
To create a column of various date/time types in a
temporary table the create_tmp_field_from_item() function
uses the Item::tmp_table_field_from_field_type() method
call. However, fields of the MYSQL_TYPE_NEWDATE type were
missed there, and the VARBINARY columns were created
by default.
Necessary condition has been added.
mysql-test/r/metadata.result:
Added test case for bug #39283.
mysql-test/t/metadata.test:
Added test case for bug #39283.
sql/sql_select.cc:
Bug #39283: Date returned as VARBINARY to client for queries
with COALESCE and JOIN
To create a column of various date/time types in a
temporary table the create_tmp_field_from_item() function
uses the Item::tmp_table_field_from_field_type() method
call. However, fields of the MYSQL_TYPE_NEWDATE type were
missed there, and the VARBINARY columns were created
by default.
Necessary condition has been added.
Diffstat (limited to 'mysql-test/r/metadata.result')
| -rw-r--r-- | mysql-test/r/metadata.result | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mysql-test/r/metadata.result b/mysql-test/r/metadata.result index a4b6fd2ce8f..5aad5874ffc 100644 --- a/mysql-test/r/metadata.result +++ b/mysql-test/r/metadata.result @@ -181,4 +181,21 @@ c1 c2 3 3 DROP VIEW v1,v2; DROP TABLE t1,t2; +CREATE TABLE t1 (i INT, d DATE); +INSERT INTO t1 VALUES (1, '2008-01-01'), (2, '2008-01-02'), (3, '2008-01-03'); +SELECT COALESCE(d, d), IFNULL(d, d), IF(i, d, d), +CASE i WHEN i THEN d ELSE d END, GREATEST(d, d), LEAST(d, d) +FROM t1 ORDER BY RAND(); +Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr +2008-01-01 2008-01-01 2008-01-01 2008-01-01 2008-01-01 2008-01-01 +2008-01-02 2008-01-02 2008-01-02 2008-01-02 2008-01-02 2008-01-02 +2008-01-03 2008-01-03 2008-01-03 2008-01-03 2008-01-03 2008-01-03 +COALESCE(d, d) IFNULL(d, d) IF(i, d, d) CASE i WHEN i THEN d ELSE d END GREATEST(d, d) LEAST(d, d) +def CASE i WHEN i THEN d ELSE d END CASE i WHEN i THEN d ELSE d END 10 10 10 Y 128 0 63 +def COALESCE(d, d) COALESCE(d, d) 10 10 10 Y 128 0 63 +def GREATEST(d, d) GREATEST(d, d) 10 10 10 Y 128 0 63 +def IF(i, d, d) IF(i, d, d) 10 10 10 Y 128 0 63 +def IFNULL(d, d) IFNULL(d, d) 10 10 10 Y 128 0 63 +def LEAST(d, d) LEAST(d, d) 10 10 10 Y 128 0 63 +DROP TABLE t1; End of 5.0 tests |