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#
# Testing CONCAT with null values
#
SET sql_mode=ORACLE;
EXPLAIN EXTENDED SELECT 'a'||'b'||'c';
EXPLAIN EXTENDED SELECT CONCAT('a'||'b'||'c');
SELECT '' || '';
SELECT '' || 'b';
SELECT '' || NULL;
SELECT 'a' || '';
SELECT 'a' || 'b';
SELECT 'a' || NULL;
SELECT NULL || '';
SELECT NULL || 'b';
SELECT NULL || NULL;
SELECT '' || '' || '';
SELECT '' || '' || 'c';
SELECT '' || '' || NULL;
SELECT '' || 'b' || '';
SELECT '' || 'b' || 'c';
SELECT '' || 'b' || NULL;
SELECT '' || NULL || '';
SELECT '' || NULL || 'c';
SELECT '' || NULL || NULL;
SELECT 'a' || '' || '';
SELECT 'a' || '' || 'c';
SELECT 'a' || '' || NULL;
SELECT 'a' || 'b' || '';
SELECT 'a' || 'b' || 'c';
SELECT 'a' || 'b' || NULL;
SELECT 'a' || NULL || '';
SELECT 'a' || NULL || 'c';
SELECT 'a' || NULL || NULL;
SELECT NULL || '' || '';
SELECT NULL || '' || 'c';
SELECT NULL || '' || NULL;
SELECT NULL || 'b' || '';
SELECT NULL || 'b' || 'c';
SELECT NULL || 'b' || NULL;
SELECT NULL || NULL || '';
SELECT NULL || NULL || 'c';
SELECT NULL || NULL || NULL;
CREATE TABLE t1 (a VARCHAR(10), b VARCHAR(10), c VARCHAR(10));
INSERT INTO t1 VALUES ('', '', '');
INSERT INTO t1 VALUES ('', '', 'c');
INSERT INTO t1 VALUES ('', '', NULL);
INSERT INTO t1 VALUES ('', 'b', '');
INSERT INTO t1 VALUES ('', 'b', 'c');
INSERT INTO t1 VALUES ('', 'b', NULL);
INSERT INTO t1 VALUES ('', NULL, '');
INSERT INTO t1 VALUES ('', NULL, 'c');
INSERT INTO t1 VALUES ('', NULL, NULL);
INSERT INTO t1 VALUES ('a', '', '');
INSERT INTO t1 VALUES ('a', '', 'c');
INSERT INTO t1 VALUES ('a', '', NULL);
INSERT INTO t1 VALUES ('a', 'b', '');
INSERT INTO t1 VALUES ('a', 'b', 'c');
INSERT INTO t1 VALUES ('a', 'b', NULL);
INSERT INTO t1 VALUES ('a', NULL, '');
INSERT INTO t1 VALUES ('a', NULL, 'c');
INSERT INTO t1 VALUES ('a', NULL, NULL);
INSERT INTO t1 VALUES (NULL, '', '');
INSERT INTO t1 VALUES (NULL, '', 'c');
INSERT INTO t1 VALUES (NULL, '', NULL);
INSERT INTO t1 VALUES (NULL, 'b', '');
INSERT INTO t1 VALUES (NULL, 'b', 'c');
INSERT INTO t1 VALUES (NULL, 'b', NULL);
INSERT INTO t1 VALUES (NULL, NULL, '');
INSERT INTO t1 VALUES (NULL, NULL, 'c');
INSERT INTO t1 VALUES (NULL, NULL, NULL);
SELECT LENGTH(a||b||c), a||b||c FROM t1 ORDER BY a,b,c;
SELECT LENGTH(CONCAT(a||b||c)), CONCAT(a||b||c) FROM t1 ORDER BY a,b,c;
DROP TABLE t1;
--echo #
--echo # MDEV-12478 CONCAT function inside view casts values incorrectly with Oracle sql_mode
--echo #
SET sql_mode=ORACLE;
CREATE VIEW v1 AS SELECT 'foo'||NULL||'bar' AS test;
SHOW CREATE VIEW v1;
SELECT * FROM v1;
SET sql_mode=DEFAULT;
SHOW CREATE VIEW v1;
SELECT * FROM v1;
DROP VIEW v1;
SET sql_mode=DEFAULT;
CREATE VIEW v1 AS SELECT CONCAT('foo',NULL,'bar') AS test;
SHOW CREATE VIEW v1;
SELECT * FROM v1;
SET sql_mode=ORACLE;
SHOW CREATE VIEW v1;
SELECT * FROM v1;
DROP VIEW v1;
SET sql_mode=DEFAULT;
CREATE VIEW v1 AS SELECT '0'||'1' AS test;
SHOW CREATE VIEW v1;
SELECT * FROM v1;
SET sql_mode=ORACLE;
SHOW CREATE VIEW v1;
SELECT * FROM v1;
DROP VIEW v1;
--echo #
--echo # MDEV-16186 Concatenation operator || returns wrong results in sql_mode=ORACLE
--echo #
# Concatenation operator || has the same precedence with +
# (stronger than << and weaker than * ^)
SELECT -1<<1||1 AS a FROM DUAL;
SELECT -1||0<<1 AS a FROM DUAL;
EXPLAIN EXTENDED SELECT -1<<1||1 AS a FROM DUAL;
EXPLAIN EXTENDED SELECT -1||0<<1 AS a FROM DUAL;
SELECT -1+1||1 AS a FROM DUAL;
SELECT -1||0+1 AS a FROM DUAL;
EXPLAIN EXTENDED SELECT -1+1||1 AS a FROM DUAL;
EXPLAIN EXTENDED SELECT -1||0+1 AS a FROM DUAL;
SELECT 1*1||-1 AS a FROM DUAL;
SELECT 1||1*-1 AS a FROM DUAL;
EXPLAIN EXTENDED SELECT 1*1||-1 AS a FROM DUAL;
EXPLAIN EXTENDED SELECT 1||1*-1 AS a FROM DUAL;
SELECT -1^1||1 AS a FROM DUAL;
SELECT -1||0^1 AS a FROM DUAL;
EXPLAIN EXTENDED SELECT -1^1||1 AS a FROM DUAL;
EXPLAIN EXTENDED SELECT -1||0^1 AS a FROM DUAL;
--echo #
--echo # MDEV-17359 Concatenation operator || in like expression failed in sql_mode=ORACLE
--echo #
SELECT 'abc' LIKE 'a'||'%';
EXPLAIN EXTENDED SELECT 'abc' LIKE 'a'||'%';
SELECT 'x' FROM DUAL WHERE 11 LIKE 1||1;
SELECT 'x' FROM DUAL WHERE 1||1 LIKE 11;
SELECT 'x' FROM DUAL WHERE 1||1 LIKE 1||1;
CREATE TABLE t1 (c1 VARCHAR(10),c2 VARCHAR(10), ord INTEGER);
INSERT INTO t1 VALUES ('a', 'ab' ,1);
INSERT INTO t1 VALUES ('ab', 'ab', 2);
INSERT INTO t1 VALUES ('abc', 'ab', 3);
SELECT c1 FROM t1 WHERE c1 LIKE '%'||'b' ORDER BY ord;
EXPLAIN EXTENDED SELECT c1 FROM t1 WHERE c1 LIKE '%'||'b' ORDER BY ord;
SELECT c1 FROM t1 WHERE c1 LIKE c2||'%'||'c' ORDER BY ord;
EXPLAIN EXTENDED SELECT c1 FROM t1 WHERE c1 LIKE c2||'%'||'c' ORDER BY ord;
SELECT 'x' FROM t1 WHERE c1||c2 LIKE 'aa%';
EXPLAIN EXTENDED SELECT 'x' FROM t1 WHERE c1||c2 LIKE 'aa%';
SELECT 'x' FROM t1 WHERE c1||c2 LIKE c2||c1;
EXPLAIN EXTENDED SELECT 'x' FROM t1 WHERE c1||c2 LIKE c2||c1;
CREATE VIEW v1 AS SELECT c1, c2, c1 LIKE c2||'_' FROM t1 ORDER BY ord;
SELECT * FROM v1;
EXPLAIN EXTENDED SELECT * FROM v1;
DROP VIEW v1;
DROP TABLE t1;
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