mirror of
https://github.com/MariaDB/server.git
synced 2025-01-30 18:41:56 +01:00
393 lines
11 KiB
Text
393 lines
11 KiB
Text
SET sql_mode=ORACLE;
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EXPLAIN EXTENDED SELECT 'a'||'b'||'c';
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select concat(concat('a','b'),'c') AS "'a'||'b'||'c'"
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EXPLAIN EXTENDED SELECT CONCAT('a'||'b'||'c');
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select concat(concat(concat('a','b'),'c')) AS "CONCAT('a'||'b'||'c')"
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SELECT '' || '';
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'' || ''
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SELECT '' || 'b';
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'' || 'b'
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b
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SELECT '' || NULL;
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'' || NULL
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SELECT 'a' || '';
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'a' || ''
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a
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SELECT 'a' || 'b';
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'a' || 'b'
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ab
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SELECT 'a' || NULL;
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'a' || NULL
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a
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SELECT NULL || '';
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NULL || ''
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SELECT NULL || 'b';
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NULL || 'b'
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b
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SELECT NULL || NULL;
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NULL || NULL
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NULL
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SELECT '' || '' || '';
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'' || '' || ''
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SELECT '' || '' || 'c';
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'' || '' || 'c'
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c
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SELECT '' || '' || NULL;
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'' || '' || NULL
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SELECT '' || 'b' || '';
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'' || 'b' || ''
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b
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SELECT '' || 'b' || 'c';
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'' || 'b' || 'c'
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bc
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SELECT '' || 'b' || NULL;
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'' || 'b' || NULL
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b
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SELECT '' || NULL || '';
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'' || NULL || ''
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SELECT '' || NULL || 'c';
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'' || NULL || 'c'
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c
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SELECT '' || NULL || NULL;
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'' || NULL || NULL
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SELECT 'a' || '' || '';
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'a' || '' || ''
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a
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SELECT 'a' || '' || 'c';
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'a' || '' || 'c'
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ac
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SELECT 'a' || '' || NULL;
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'a' || '' || NULL
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a
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SELECT 'a' || 'b' || '';
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'a' || 'b' || ''
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ab
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SELECT 'a' || 'b' || 'c';
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'a' || 'b' || 'c'
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abc
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SELECT 'a' || 'b' || NULL;
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'a' || 'b' || NULL
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ab
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SELECT 'a' || NULL || '';
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'a' || NULL || ''
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a
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SELECT 'a' || NULL || 'c';
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'a' || NULL || 'c'
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ac
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SELECT 'a' || NULL || NULL;
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'a' || NULL || NULL
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a
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SELECT NULL || '' || '';
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NULL || '' || ''
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SELECT NULL || '' || 'c';
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NULL || '' || 'c'
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c
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SELECT NULL || '' || NULL;
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NULL || '' || NULL
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SELECT NULL || 'b' || '';
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NULL || 'b' || ''
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b
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SELECT NULL || 'b' || 'c';
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NULL || 'b' || 'c'
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bc
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SELECT NULL || 'b' || NULL;
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NULL || 'b' || NULL
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b
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SELECT NULL || NULL || '';
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NULL || NULL || ''
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SELECT NULL || NULL || 'c';
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NULL || NULL || 'c'
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c
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SELECT NULL || NULL || NULL;
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NULL || NULL || NULL
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NULL
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CREATE TABLE t1 (a VARCHAR(10), b VARCHAR(10), c VARCHAR(10));
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INSERT INTO t1 VALUES ('', '', '');
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INSERT INTO t1 VALUES ('', '', 'c');
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INSERT INTO t1 VALUES ('', '', NULL);
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INSERT INTO t1 VALUES ('', 'b', '');
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INSERT INTO t1 VALUES ('', 'b', 'c');
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INSERT INTO t1 VALUES ('', 'b', NULL);
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INSERT INTO t1 VALUES ('', NULL, '');
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INSERT INTO t1 VALUES ('', NULL, 'c');
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INSERT INTO t1 VALUES ('', NULL, NULL);
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INSERT INTO t1 VALUES ('a', '', '');
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INSERT INTO t1 VALUES ('a', '', 'c');
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INSERT INTO t1 VALUES ('a', '', NULL);
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INSERT INTO t1 VALUES ('a', 'b', '');
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INSERT INTO t1 VALUES ('a', 'b', 'c');
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INSERT INTO t1 VALUES ('a', 'b', NULL);
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INSERT INTO t1 VALUES ('a', NULL, '');
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INSERT INTO t1 VALUES ('a', NULL, 'c');
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INSERT INTO t1 VALUES ('a', NULL, NULL);
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INSERT INTO t1 VALUES (NULL, '', '');
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INSERT INTO t1 VALUES (NULL, '', 'c');
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INSERT INTO t1 VALUES (NULL, '', NULL);
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INSERT INTO t1 VALUES (NULL, 'b', '');
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INSERT INTO t1 VALUES (NULL, 'b', 'c');
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INSERT INTO t1 VALUES (NULL, 'b', NULL);
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INSERT INTO t1 VALUES (NULL, NULL, '');
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INSERT INTO t1 VALUES (NULL, NULL, 'c');
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INSERT INTO t1 VALUES (NULL, NULL, NULL);
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SELECT LENGTH(a||b||c), a||b||c FROM t1 ORDER BY a,b,c;
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LENGTH(a||b||c) a||b||c
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NULL NULL
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0
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1 c
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0
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0
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1 c
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1 b
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1 b
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2 bc
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0
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0
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1 c
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0
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0
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1 c
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1 b
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1 b
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2 bc
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1 a
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1 a
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2 ac
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1 a
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1 a
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2 ac
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2 ab
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2 ab
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3 abc
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SELECT LENGTH(CONCAT(a||b||c)), CONCAT(a||b||c) FROM t1 ORDER BY a,b,c;
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LENGTH(CONCAT(a||b||c)) CONCAT(a||b||c)
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NULL NULL
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0
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1 c
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0
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0
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1 c
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1 b
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1 b
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2 bc
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0
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0
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1 c
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0
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0
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1 c
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1 b
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1 b
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2 bc
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1 a
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1 a
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2 ac
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1 a
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1 a
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2 ac
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2 ab
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2 ab
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3 abc
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DROP TABLE t1;
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#
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# MDEV-12478 CONCAT function inside view casts values incorrectly with Oracle sql_mode
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#
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SET sql_mode=ORACLE;
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CREATE VIEW v1 AS SELECT 'foo'||NULL||'bar' AS test;
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SHOW CREATE VIEW v1;
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View Create View character_set_client collation_connection
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v1 CREATE VIEW "v1" AS select concat(concat('foo',NULL),'bar') AS "test" latin1 latin1_swedish_ci
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SELECT * FROM v1;
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test
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foobar
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SET sql_mode=DEFAULT;
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SHOW CREATE VIEW v1;
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View Create View character_set_client collation_connection
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v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select oracle_schema.concat(oracle_schema.concat('foo',NULL),'bar') AS `test` latin1 latin1_swedish_ci
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SELECT * FROM v1;
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test
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foobar
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DROP VIEW v1;
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SET sql_mode=DEFAULT;
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CREATE VIEW v1 AS SELECT CONCAT('foo',NULL,'bar') AS test;
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SHOW CREATE VIEW v1;
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View Create View character_set_client collation_connection
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v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select concat('foo',NULL,'bar') AS `test` latin1 latin1_swedish_ci
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SELECT * FROM v1;
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test
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NULL
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SET sql_mode=ORACLE;
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SHOW CREATE VIEW v1;
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View Create View character_set_client collation_connection
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v1 CREATE VIEW "v1" AS select mariadb_schema.concat('foo',NULL,'bar') AS "test" latin1 latin1_swedish_ci
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SELECT * FROM v1;
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test
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NULL
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DROP VIEW v1;
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SET sql_mode=DEFAULT;
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CREATE VIEW v1 AS SELECT '0'||'1' AS test;
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SHOW CREATE VIEW v1;
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View Create View character_set_client collation_connection
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v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select '0' or '1' AS `test` latin1 latin1_swedish_ci
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SELECT * FROM v1;
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test
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1
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SET sql_mode=ORACLE;
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SHOW CREATE VIEW v1;
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View Create View character_set_client collation_connection
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v1 CREATE VIEW "v1" AS select '0' or '1' AS "test" latin1 latin1_swedish_ci
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SELECT * FROM v1;
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test
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1
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DROP VIEW v1;
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#
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# MDEV-16186 Concatenation operator || returns wrong results in sql_mode=ORACLE
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#
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SELECT -1<<1||1 AS a FROM DUAL;
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a
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18446744073709549568
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SELECT -1||0<<1 AS a FROM DUAL;
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a
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18446744073709551596
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EXPLAIN EXTENDED SELECT -1<<1||1 AS a FROM DUAL;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select -1 << concat(1,1) AS "a"
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EXPLAIN EXTENDED SELECT -1||0<<1 AS a FROM DUAL;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select concat(-1,0) << 1 AS "a"
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SELECT -1+1||1 AS a FROM DUAL;
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a
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01
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SELECT -1||0+1 AS a FROM DUAL;
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a
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-9
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EXPLAIN EXTENDED SELECT -1+1||1 AS a FROM DUAL;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select concat(-1 + 1,1) AS "a"
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EXPLAIN EXTENDED SELECT -1||0+1 AS a FROM DUAL;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select concat(-1,0) + 1 AS "a"
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SELECT 1*1||-1 AS a FROM DUAL;
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a
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1-1
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SELECT 1||1*-1 AS a FROM DUAL;
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a
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1-1
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EXPLAIN EXTENDED SELECT 1*1||-1 AS a FROM DUAL;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select concat(1 * 1,-1) AS "a"
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EXPLAIN EXTENDED SELECT 1||1*-1 AS a FROM DUAL;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select concat(1,1 * -1) AS "a"
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SELECT -1^1||1 AS a FROM DUAL;
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a
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184467440737095516141
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SELECT -1||0^1 AS a FROM DUAL;
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a
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-11
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EXPLAIN EXTENDED SELECT -1^1||1 AS a FROM DUAL;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select concat(-1 ^ 1,1) AS "a"
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EXPLAIN EXTENDED SELECT -1||0^1 AS a FROM DUAL;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select concat(-1,0 ^ 1) AS "a"
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#
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# MDEV-17359 Concatenation operator || in like expression failed in sql_mode=ORACLE
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#
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SELECT 'abc' LIKE 'a'||'%';
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'abc' LIKE 'a'||'%'
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1
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EXPLAIN EXTENDED SELECT 'abc' LIKE 'a'||'%';
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select 'abc' like concat('a','%') AS "'abc' LIKE 'a'||'%'"
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SELECT 'x' FROM DUAL WHERE 11 LIKE 1||1;
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x
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x
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SELECT 'x' FROM DUAL WHERE 1||1 LIKE 11;
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x
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x
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SELECT 'x' FROM DUAL WHERE 1||1 LIKE 1||1;
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x
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x
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CREATE TABLE t1 (c1 VARCHAR(10),c2 VARCHAR(10), ord INTEGER);
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INSERT INTO t1 VALUES ('a', 'ab' ,1);
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INSERT INTO t1 VALUES ('ab', 'ab', 2);
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INSERT INTO t1 VALUES ('abc', 'ab', 3);
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SELECT c1 FROM t1 WHERE c1 LIKE '%'||'b' ORDER BY ord;
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c1
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ab
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EXPLAIN EXTENDED SELECT c1 FROM t1 WHERE c1 LIKE '%'||'b' ORDER BY ord;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort
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Warnings:
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Note 1003 select "test"."t1"."c1" AS "c1" from "test"."t1" where "test"."t1"."c1" like <cache>(convert(concat('%','b') using utf8mb4)) order by "test"."t1"."ord"
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SELECT c1 FROM t1 WHERE c1 LIKE c2||'%'||'c' ORDER BY ord;
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c1
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abc
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EXPLAIN EXTENDED SELECT c1 FROM t1 WHERE c1 LIKE c2||'%'||'c' ORDER BY ord;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort
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Warnings:
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Note 1003 select "test"."t1"."c1" AS "c1" from "test"."t1" where "test"."t1"."c1" like concat(concat("test"."t1"."c2",'%'),'c') order by "test"."t1"."ord"
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SELECT 'x' FROM t1 WHERE c1||c2 LIKE 'aa%';
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x
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x
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EXPLAIN EXTENDED SELECT 'x' FROM t1 WHERE c1||c2 LIKE 'aa%';
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where
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Warnings:
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Note 1003 select 'x' AS "x" from "test"."t1" where concat("test"."t1"."c1","test"."t1"."c2") like 'aa%'
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SELECT 'x' FROM t1 WHERE c1||c2 LIKE c2||c1;
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x
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x
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EXPLAIN EXTENDED SELECT 'x' FROM t1 WHERE c1||c2 LIKE c2||c1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where
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Warnings:
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Note 1003 select 'x' AS "x" from "test"."t1" where concat("test"."t1"."c1","test"."t1"."c2") like concat("test"."t1"."c2","test"."t1"."c1")
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CREATE VIEW v1 AS SELECT c1, c2, c1 LIKE c2||'_' FROM t1 ORDER BY ord;
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SELECT * FROM v1;
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c1 c2 c1 LIKE c2||'_'
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a ab 0
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ab ab 0
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abc ab 1
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EXPLAIN EXTENDED SELECT * FROM v1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using filesort
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Warnings:
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Note 1003 select "test"."t1"."c1" AS "c1","test"."t1"."c2" AS "c2","test"."t1"."c1" like concat("test"."t1"."c2",'_') AS "c1 LIKE c2||'_'" from "test"."t1" order by "test"."t1"."ord"
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DROP VIEW v1;
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DROP TABLE t1;
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