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8bfbcbd981
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.
132 lines
3.6 KiB
Text
132 lines
3.6 KiB
Text
#
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# Test metadata
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#
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--disable_warnings
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drop table if exists t1,t2;
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--enable_warnings
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--enable_metadata
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# PS protocol gives slightly different metadata
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--disable_ps_protocol
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#
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# First some simple tests
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#
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select 1, 1.0, -1, "hello", NULL;
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create table t1 (a tinyint, b smallint, c mediumint, d int, e bigint, f float(3,2), g double(4,3), h decimal(5,4), i year, j date, k timestamp, l datetime, m enum('a','b'), n set('a','b'), o char(10));
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select * from t1;
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select a b, b c from t1 as t2;
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drop table t1;
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#
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# Test metadata from ORDER BY (Bug #2654)
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#
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CREATE TABLE t1 (id tinyint(3) default NULL, data varchar(255) default NULL);
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INSERT INTO t1 VALUES (1,'male'),(2,'female');
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CREATE TABLE t2 (id tinyint(3) unsigned default NULL, data char(3) default '0');
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INSERT INTO t2 VALUES (1,'yes'),(2,'no');
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select t1.id, t1.data, t2.data from t1, t2 where t1.id = t2.id;
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select t1.id, t1.data, t2.data from t1, t2 where t1.id = t2.id order by t1.id;
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select t1.id from t1 union select t2.id from t2;
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drop table t1,t2;
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#
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# variables union and derived tables metadata test
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#
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create table t1 ( a int, b varchar(30), primary key(a));
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insert into t1 values (1,'one');
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insert into t1 values (2,'two');
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set @arg00=1 ;
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select @arg00 FROM t1 where a=1 union distinct select 1 FROM t1 where a=1;
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select * from (select @arg00) aaa;
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select 1 union select 1;
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select * from (select 1 union select 1) aaa;
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drop table t1;
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--disable_metadata
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#
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# Bug #11688: Bad mysql_info() results in multi-results
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#
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--enable_info
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delimiter //;
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create table t1 (i int);
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insert into t1 values (1),(2),(3);
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select * from t1 where i = 2;
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drop table t1;//
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delimiter ;//
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--disable_info
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#
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# Bug #20191: getTableName gives wrong or inconsistent result when using VIEWs
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#
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--enable_metadata
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create table t1 (id int(10));
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insert into t1 values (1);
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CREATE VIEW v1 AS select t1.id as id from t1;
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CREATE VIEW v2 AS select t1.id as renamed from t1;
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CREATE VIEW v3 AS select t1.id + 12 as renamed from t1;
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select * from v1 group by id limit 1;
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select * from v1 group by id limit 0;
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select * from v1 where id=1000 group by id;
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select * from v1 where id=1 group by id;
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select * from v2 where renamed=1 group by renamed;
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select * from v3 where renamed=1 group by renamed;
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drop table t1;
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drop view v1,v2,v3;
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--disable_metadata
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# End of 4.1 tests
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#
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# Bug #28492: subselect returns LONG in >5.0.24a and LONGLONG in <=5.0.24a
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#
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--enable_metadata
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select a.* from (select 2147483648 as v_large) a;
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select a.* from (select 214748364 as v_small) a;
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--disable_metadata
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#
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# Bug #28898: table alias and database name of VIEW columns is empty in the
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# metadata of # SELECT statement where join is executed via temporary table.
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#
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CREATE TABLE t1 (c1 CHAR(1));
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CREATE TABLE t2 (c2 CHAR(1));
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CREATE VIEW v1 AS SELECT t1.c1 FROM t1;
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CREATE VIEW v2 AS SELECT t2.c2 FROM t2;
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INSERT INTO t1 VALUES ('1'), ('2'), ('3');
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INSERT INTO t2 VALUES ('1'), ('2'), ('3'), ('2');
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--enable_metadata
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SELECT v1.c1 FROM v1 JOIN t2 ON c1=c2 ORDER BY 1;
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SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2;
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SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2 GROUP BY v1.c1;
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SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2 GROUP BY v1.c1 ORDER BY v2.c2;
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--disable_metadata
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DROP VIEW v1,v2;
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DROP TABLE t1,t2;
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#
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# Bug #39283: Date returned as VARBINARY to client for queries
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# with COALESCE and JOIN
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#
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CREATE TABLE t1 (i INT, d DATE);
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INSERT INTO t1 VALUES (1, '2008-01-01'), (2, '2008-01-02'), (3, '2008-01-03');
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--enable_metadata
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--sorted_result
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SELECT COALESCE(d, d), IFNULL(d, d), IF(i, d, d),
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CASE i WHEN i THEN d ELSE d END, GREATEST(d, d), LEAST(d, d)
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FROM t1 ORDER BY RAND(); # force filesort
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--disable_metadata
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DROP TABLE t1;
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--echo End of 5.0 tests
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