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|
#
# MDEV-20016 Add MariaDB_DATA_TYPE_PLUGIN
#
SELECT
PLUGIN_NAME,
PLUGIN_VERSION,
PLUGIN_STATUS,
PLUGIN_TYPE,
PLUGIN_AUTHOR,
PLUGIN_DESCRIPTION,
PLUGIN_LICENSE,
PLUGIN_MATURITY,
PLUGIN_AUTH_VERSION
FROM INFORMATION_SCHEMA.PLUGINS
WHERE PLUGIN_TYPE='DATA TYPE'
AND PLUGIN_NAME='test_int8';
PLUGIN_NAME test_int8
PLUGIN_VERSION 1.0
PLUGIN_STATUS ACTIVE
PLUGIN_TYPE DATA TYPE
PLUGIN_AUTHOR MariaDB Corporation
PLUGIN_DESCRIPTION Data type TEST_INT8
PLUGIN_LICENSE GPL
PLUGIN_MATURITY Experimental
PLUGIN_AUTH_VERSION 1.0
CREATE TABLE t1 (a TEST_INT8);
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
CREATE TABLE t1 (a TEST_INT8(4));
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` test_int8(4) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
CREATE TABLE t1 (a TEST_INT8(10));
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` test_int8(10) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
CREATE TABLE t1 (a TEST_INT8(20));
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SELECT CAST('100' AS TEST_INT8) AS cast;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def cast 3 3 3 N 32897 0 63
cast
100
BEGIN NOT ATOMIC
DECLARE a TEST_INT8 DEFAULT 256;
SELECT HEX(a), a;
END;
$$
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def HEX(a) 253 40 3 Y 0 0 8
def a a 8 20 3 Y 32768 0 63
HEX(a) a
100 256
CREATE FUNCTION f1(p TEST_INT8) RETURNS TEST_INT8 RETURN 1;
SHOW CREATE FUNCTION f1;
Function sql_mode Create Function character_set_client collation_connection Database Collation
f1 STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION CREATE DEFINER=`root`@`localhost` FUNCTION `f1`(p TEST_INT8) RETURNS test_int8(20)
RETURN 1 latin1 latin1_swedish_ci latin1_swedish_ci
SELECT f1(10);
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def f1(10) f1(10) 8 20 1 Y 32768 0 63
f1(10)
1
DROP FUNCTION f1;
CREATE TABLE t1 (a TEST_INT8);
CREATE TABLE t2 AS SELECT a FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (a TEST_INT8);
CREATE TABLE t2 AS SELECT COALESCE(a,a) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`COALESCE(a,a)` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (a TEST_INT8);
CREATE TABLE t2 AS SELECT LEAST(a,a) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`LEAST(a,a)` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (a TEST_INT8);
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 AS SELECT MIN(a), MAX(a) FROM t1;
SELECT * FROM t2;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t2 t2 MIN(a) MIN(a) 8 20 1 Y 32768 0 63
def test t2 t2 MAX(a) MAX(a) 8 20 1 Y 32768 0 63
MIN(a) MAX(a)
1 2
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`MIN(a)` test_int8(20) DEFAULT NULL,
`MAX(a)` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (id INT, a TEST_INT8);
INSERT INTO t1 VALUES (1,1),(1,2),(2,1),(2,2);
CREATE TABLE t2 AS SELECT id, MIN(a), MAX(a) FROM t1 GROUP BY id;
SELECT * FROM t2;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t2 t2 id id 3 11 1 Y 32768 0 63
def test t2 t2 MIN(a) MIN(a) 8 20 1 Y 32768 0 63
def test t2 t2 MAX(a) MAX(a) 8 20 1 Y 32768 0 63
id MIN(a) MAX(a)
1 1 2
2 1 2
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`id` int(11) DEFAULT NULL,
`MIN(a)` test_int8(20) DEFAULT NULL,
`MAX(a)` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (a TEST_INT8);
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 AS SELECT DISTINCT a FROM t1;
SELECT * FROM t2;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t2 t2 a a 8 20 1 Y 32768 0 63
a
1
2
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (a TEST_INT8);
INSERT INTO t1 VALUES (1);
CREATE TABLE t2 AS SELECT (SELECT a FROM t1) AS c1;
SELECT * FROM t2;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t2 t2 c1 c1 8 20 1 Y 32768 0 63
c1
1
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`c1` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (a TEST_INT8);
CREATE TABLE t2 AS SELECT a FROM t1 UNION SELECT a FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
# Testing CREATE..LIKE
CREATE TABLE t1 (a TEST_INT8);
CREATE TABLE t2 LIKE t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
# Testing CREATE..SELECT
CREATE TABLE t1 (a TEST_INT8);
CREATE TABLE t2 AS SELECT * FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
# Testing ALTER
CREATE TABLE t1 (a TEST_INT8);
INSERT INTO t1 VALUES (10),(20);
SELECT * FROM t1;
a
10
20
ALTER TABLE t1 MODIFY a INT;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
SELECT * FROM t1;
a
10
20
ALTER TABLE t1 MODIFY a TEST_INT8;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
SELECT * FROM t1;
a
10
20
DROP TABLE t1;
CREATE TABLE t1 (a TEST_INT8);
INSERT INTO t1 VALUES (10),(20);
ALTER TABLE t1 ADD b TEST_INT8 DEFAULT 0;
SELECT * FROM t1;
a b
10 0
20 0
DROP TABLE t1;
# Testing metadata views
CREATE TABLE t1 (a TEST_INT8);
SELECT
TABLE_CATALOG,
TABLE_SCHEMA,
TABLE_NAME,
COLUMN_NAME,
ORDINAL_POSITION,
COLUMN_DEFAULT,
IS_NULLABLE,
DATA_TYPE,
CHARACTER_MAXIMUM_LENGTH,
CHARACTER_OCTET_LENGTH,
NUMERIC_PRECISION,
NUMERIC_SCALE,
DATETIME_PRECISION,
CHARACTER_SET_NAME,
COLLATION_NAME,
COLUMN_TYPE,
EXTRA
FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='t1' AND TABLE_SCHEMA='test';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME t1
COLUMN_NAME a
ORDINAL_POSITION 1
COLUMN_DEFAULT NULL
IS_NULLABLE YES
DATA_TYPE test_int8
CHARACTER_MAXIMUM_LENGTH NULL
CHARACTER_OCTET_LENGTH NULL
NUMERIC_PRECISION 19
NUMERIC_SCALE 0
DATETIME_PRECISION NULL
CHARACTER_SET_NAME NULL
COLLATION_NAME NULL
COLUMN_TYPE test_int8(20)
EXTRA
SHOW COLUMNS FROM t1;
Field Type Null Key Default Extra
a test_int8(20) YES NULL
DROP TABLE t1;
# Testing indexing
CREATE TABLE t1 (a TEST_INT8, KEY(a));
INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7);
EXPLAIN SELECT * FROM t1 WHERE a=3;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref a a 9 const 1 Using index
DROP TABLE t1;
# Testing aggregation for result
CREATE TABLE t1 (a TEST_INT8);
INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7);
CREATE TABLE t2 AS SELECT
COALESCE(a,1) AS c1,
COALESCE(a,1.0) AS c2,
COALESCE(a,1e0) AS c3
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`c1` test_int8(20) DEFAULT NULL,
`c2` decimal(20,1) DEFAULT NULL,
`c3` double DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
SELECT * FROM t2 ORDER BY c1;
c1 c2 c3
0 0.0 0
1 1.0 1
2 2.0 2
3 3.0 3
4 4.0 4
5 5.0 5
6 6.0 6
7 7.0 7
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_tinyint TINYINT,
c_smallint SMALLINT,
c_mediumint MEDIUMINT,
c_int INT,
c_bigint BIGINT
);
CREATE TABLE t2 AS SELECT
COALESCE(c,c_tinyint),
COALESCE(c,c_smallint),
COALESCE(c,c_mediumint),
COALESCE(c,c_bigint)
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`COALESCE(c,c_tinyint)` test_int8(20) DEFAULT NULL,
`COALESCE(c,c_smallint)` test_int8(20) DEFAULT NULL,
`COALESCE(c,c_mediumint)` test_int8(20) DEFAULT NULL,
`COALESCE(c,c_bigint)` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_time TIME,
c_date DATE,
c_datetime DATETIME,
c_timestamp TIMESTAMP
);
SELECT COALESCE(c, c_time) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and time for operation 'coalesce'
SELECT COALESCE(c, c_date) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and date for operation 'coalesce'
SELECT COALESCE(c, c_datetime) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and datetime for operation 'coalesce'
SELECT COALESCE(c, c_timestamp) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and timestamp for operation 'coalesce'
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_char CHAR(32),
c_varchar VARCHAR(32),
c_tinytext TINYTEXT,
c_text TEXT,
c_mediumtext MEDIUMTEXT,
c_longtext LONGTEXT
);
SELECT COALESCE(c, c_char) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and char for operation 'coalesce'
SELECT COALESCE(c, c_varchar) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and varchar for operation 'coalesce'
SELECT COALESCE(c, c_tinytext) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and tinyblob for operation 'coalesce'
SELECT COALESCE(c, c_text) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and blob for operation 'coalesce'
SELECT COALESCE(c, c_mediumtext) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and mediumblob for operation 'coalesce'
SELECT COALESCE(c, c_longtext) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and longblob for operation 'coalesce'
DROP TABLE t1;
# Testing aggregation for min/max
CREATE TABLE t1 (a TEST_INT8);
INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7);
CREATE TABLE t2 AS SELECT
LEAST(a,1) AS c1,
LEAST(a,1.0) AS c2,
LEAST(a,1e0) AS c3
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`c1` test_int8(20) DEFAULT NULL,
`c2` decimal(20,1) DEFAULT NULL,
`c3` double DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
SELECT * FROM t2 ORDER BY c1;
c1 c2 c3
0 0.0 0
1 1.0 1
1 1.0 1
1 1.0 1
1 1.0 1
1 1.0 1
1 1.0 1
1 1.0 1
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_tinyint TINYINT,
c_smallint SMALLINT,
c_mediumint MEDIUMINT,
c_int INT,
c_bigint BIGINT
);
CREATE TABLE t2 AS SELECT
LEAST(c,c_tinyint),
LEAST(c,c_smallint),
LEAST(c,c_mediumint),
LEAST(c,c_bigint)
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`LEAST(c,c_tinyint)` test_int8(20) DEFAULT NULL,
`LEAST(c,c_smallint)` test_int8(20) DEFAULT NULL,
`LEAST(c,c_mediumint)` test_int8(20) DEFAULT NULL,
`LEAST(c,c_bigint)` test_int8(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_time TIME,
c_date DATE,
c_datetime DATETIME,
c_timestamp TIMESTAMP
);
SELECT LEAST(c, c_time) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and time for operation 'least'
SELECT LEAST(c, c_date) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and date for operation 'least'
SELECT LEAST(c, c_datetime) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and datetime for operation 'least'
SELECT LEAST(c, c_timestamp) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and timestamp for operation 'least'
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_char CHAR(32),
c_varchar VARCHAR(32),
c_tinytext TINYTEXT,
c_text TEXT,
c_mediumtext MEDIUMTEXT,
c_longtext LONGTEXT
);
SELECT LEAST(c, c_char) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and char for operation 'least'
SELECT LEAST(c, c_varchar) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and varchar for operation 'least'
SELECT LEAST(c, c_tinytext) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and tinyblob for operation 'least'
SELECT LEAST(c, c_text) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and blob for operation 'least'
SELECT LEAST(c, c_mediumtext) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and mediumblob for operation 'least'
SELECT LEAST(c, c_longtext) FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and longblob for operation 'least'
DROP TABLE t1;
# Testing aggregation for numeric operation - plus
CREATE TABLE t1 (a TEST_INT8);
INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7);
CREATE TABLE t2 AS SELECT
a+1 AS c1,
a+1.0 AS c2,
a+1e0 AS c3
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`c1` bigint(21) DEFAULT NULL,
`c2` decimal(21,1) DEFAULT NULL,
`c3` double DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
SELECT * FROM t2 ORDER BY c1;
c1 c2 c3
1 1.0 1
2 2.0 2
3 3.0 3
4 4.0 4
5 5.0 5
6 6.0 6
7 7.0 7
8 8.0 8
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_tinyint TINYINT,
c_smallint SMALLINT,
c_mediumint MEDIUMINT,
c_int INT,
c_bigint BIGINT
);
CREATE TABLE t2 AS SELECT
c + c_tinyint,
c + c_smallint,
c + c_mediumint,
c + c_bigint
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`c + c_tinyint` bigint(21) DEFAULT NULL,
`c + c_smallint` bigint(21) DEFAULT NULL,
`c + c_mediumint` bigint(21) DEFAULT NULL,
`c + c_bigint` bigint(21) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_time TIME,
c_date DATE,
c_datetime DATETIME,
c_timestamp TIMESTAMP
);
SELECT c + c_time FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and time for operation '+'
SELECT c + c_date FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and date for operation '+'
SELECT c + c_datetime FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and datetime for operation '+'
SELECT c + c_timestamp FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and timestamp for operation '+'
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_char CHAR(32),
c_varchar VARCHAR(32),
c_tinytext TINYTEXT,
c_text TEXT,
c_mediumtext MEDIUMTEXT,
c_longtext LONGTEXT
);
SELECT c + c_char FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and char for operation '+'
SELECT c + c_varchar FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and varchar for operation '+'
SELECT c + c_tinytext FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and tinyblob for operation '+'
SELECT c + c_text FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and blob for operation '+'
SELECT c + c_mediumtext FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and mediumblob for operation '+'
SELECT c + c_longtext FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and longblob for operation '+'
DROP TABLE t1;
# Testing aggregation for numeric operation - minus
CREATE TABLE t1 (a TEST_INT8);
INSERT INTO t1 VALUES (1),(2),(3),(4),(5),(6),(7),(8);
CREATE TABLE t2 AS SELECT
a-1 AS c1,
a-1.0 AS c2,
a-1e0 AS c3
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`c1` bigint(21) DEFAULT NULL,
`c2` decimal(21,1) DEFAULT NULL,
`c3` double DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
SELECT * FROM t2 ORDER BY c1;
c1 c2 c3
0 0.0 0
1 1.0 1
2 2.0 2
3 3.0 3
4 4.0 4
5 5.0 5
6 6.0 6
7 7.0 7
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_tinyint TINYINT,
c_smallint SMALLINT,
c_mediumint MEDIUMINT,
c_int INT,
c_bigint BIGINT
);
CREATE TABLE t2 AS SELECT
c - c_tinyint,
c - c_smallint,
c - c_mediumint,
c - c_bigint
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`c - c_tinyint` bigint(21) DEFAULT NULL,
`c - c_smallint` bigint(21) DEFAULT NULL,
`c - c_mediumint` bigint(21) DEFAULT NULL,
`c - c_bigint` bigint(21) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_time TIME,
c_date DATE,
c_datetime DATETIME,
c_timestamp TIMESTAMP
);
SELECT c - c_time FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and time for operation '-'
SELECT c - c_date FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and date for operation '-'
SELECT c - c_datetime FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and datetime for operation '-'
SELECT c - c_timestamp FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and timestamp for operation '-'
DROP TABLE t1;
CREATE TABLE t1 (
c TEST_INT8,
c_char CHAR(32),
c_varchar VARCHAR(32),
c_tinytext TINYTEXT,
c_text TEXT,
c_mediumtext MEDIUMTEXT,
c_longtext LONGTEXT
);
SELECT c - c_char FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and char for operation '-'
SELECT c - c_varchar FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and varchar for operation '-'
SELECT c - c_tinytext FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and tinyblob for operation '-'
SELECT c - c_text FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and blob for operation '-'
SELECT c - c_mediumtext FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and mediumblob for operation '-'
SELECT c - c_longtext FROM t1;
ERROR HY000: Illegal parameter data types test_int8 and longblob for operation '-'
DROP TABLE t1;
# Testing CAST to other data types
CREATE TABLE t1 (a TEST_INT8);
INSERT INTO t1 VALUES (20000102);
CREATE TABLE t2 AS SELECT
a,
CAST(a AS CHAR),
CAST(a AS DECIMAL),
CAST(a AS DOUBLE),
CAST(a AS SIGNED),
CAST(a AS UNSIGNED),
CAST(a AS TIME),
CAST(a AS DATETIME),
CAST(a AS DATE)
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` test_int8(20) DEFAULT NULL,
`CAST(a AS CHAR)` varchar(20) DEFAULT NULL,
`CAST(a AS DECIMAL)` decimal(10,0) DEFAULT NULL,
`CAST(a AS DOUBLE)` double DEFAULT NULL,
`CAST(a AS SIGNED)` bigint(20) DEFAULT NULL,
`CAST(a AS UNSIGNED)` bigint(20) unsigned DEFAULT NULL,
`CAST(a AS TIME)` time DEFAULT NULL,
`CAST(a AS DATETIME)` datetime DEFAULT NULL,
`CAST(a AS DATE)` date DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
SELECT * FROM t2;
a 20000102
CAST(a AS CHAR) 20000102
CAST(a AS DECIMAL) 20000102
CAST(a AS DOUBLE) 20000102
CAST(a AS SIGNED) 20000102
CAST(a AS UNSIGNED) 20000102
CAST(a AS TIME) 00:00:00
CAST(a AS DATETIME) 2000-01-02 00:00:00
CAST(a AS DATE) 2000-01-02
DROP TABLE t2;
DROP TABLE t1;
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