mirror of
https://github.com/MariaDB/server.git
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202 lines
3.3 KiB
Plaintext
202 lines
3.3 KiB
Plaintext
drop table if exists t1,t2;
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drop view if exists v1;
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drop procedure if exists p1;
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CREATE TABLE t1 (a int, b varchar(32));
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INSERT INTO t1 VALUES
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(7,'ggggggg'), (1,'a'), (3,'ccc'),
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(4,'dddd'), (1,'A'), (2,'BB'), (4,'DDDD'),
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(5,'EEEEE'), (7,'GGGGGGG'), (2,'bb');
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CREATE TABLE t1c SELECT * FROM t1;
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CREATE TABLE t2 (c int);
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INSERT INTO t2 VALUES
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(4), (5), (7), (1);
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CREATE TABLE t2c SELECT * FROM t2;
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CREATE VIEW v1 AS SELECT a, UPPER(b) FROM t1;
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DELETE FROM t1 WHERE a=2 RETURNING * ;
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a b
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2 BB
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2 bb
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SELECT * FROM t1;
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a b
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7 ggggggg
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1 a
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3 ccc
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4 dddd
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1 A
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4 DDDD
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5 EEEEE
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7 GGGGGGG
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INSERT INTO t1 VALUES (2,'BB'), (2,'bb');
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DELETE FROM t1 WHERE a=2 RETURNING b;
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b
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bb
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BB
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SELECT * FROM t1;
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a b
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7 ggggggg
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1 a
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3 ccc
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4 dddd
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1 A
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4 DDDD
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5 EEEEE
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7 GGGGGGG
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DELETE FROM t1 WHERE a=2 RETURNING c;
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ERROR 42S22: Unknown column 'c' in 'field list'
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INSERT INTO t1 VALUES (2,'BB'), (2,'bb');
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DELETE FROM t1 WHERE a=2 RETURNING a, UPPER(b);
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a UPPER(b)
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2 BB
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2 BB
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SELECT * FROM t1;
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a b
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7 ggggggg
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1 a
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3 ccc
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4 dddd
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1 A
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4 DDDD
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5 EEEEE
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7 GGGGGGG
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INSERT INTO t1 VALUES (2,'BB'), (2,'bb');
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DELETE FROM t1 WHERE a=6 RETURNING b;
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b
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SELECT * FROM t1;
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a b
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7 ggggggg
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1 a
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3 ccc
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4 dddd
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1 A
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2 bb
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4 DDDD
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5 EEEEE
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7 GGGGGGG
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2 BB
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DELETE FROM t1 WHERE a=2 RETURNING MAX(b);
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ERROR HY000: Invalid use of group function
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DELETE FROM t1 WHERE a < 5 RETURNING a, (SELECT MIN(c) FROM t2 WHERE c=a+1);
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a (SELECT MIN(c) FROM t2 WHERE c=a+1)
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1 NULL
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3 4
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4 5
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1 NULL
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2 NULL
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4 5
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2 NULL
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SELECT * FROM t1;
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a b
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7 ggggggg
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5 EEEEE
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7 GGGGGGG
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DELETE FROM t1;
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INSERT INTO t1 SELECT * FROM t1c;
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DELETE FROM t2 WHERE c < 5
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RETURNING (SELECT GROUP_CONCAT(b) FROM t1 GROUP BY a HAVING a=c);
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(SELECT GROUP_CONCAT(b) FROM t1 GROUP BY a HAVING a=c)
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dddd,DDDD
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a,A
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SELECT * FROM t2;
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c
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5
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7
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DELETE FROM t2;
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INSERT INTO t2 SELECT * FROM t2c;
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CREATE FUNCTION f(arg INT) RETURNS TEXT
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BEGIN
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RETURN (SELECT GROUP_CONCAT(b) FROM t1 WHERE a=arg);
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END|
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DELETE FROM t2 WHERE c < 5 RETURNING f(c);
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f(c)
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dddd,DDDD
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a,A
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SELECT * FROM t2;
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c
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5
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7
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DELETE FROM t2;
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INSERT INTO t2 SELECT * FROM t2c;
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DROP FUNCTION f;
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DELETE FROM v1 WHERE a < 5 RETURNING * ;
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a UPPER(b)
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1 A
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3 CCC
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4 DDDD
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1 A
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2 BB
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4 DDDD
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2 BB
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SELECT * FROM t1;
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a b
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7 ggggggg
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5 EEEEE
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7 GGGGGGG
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DELETE FROM t1;
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INSERT INTO t1 SELECT * FROM t1c;
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CREATE VIEW v11(a,c) AS SELECT a, COUNT(b) FROM t1 GROUP BY a;
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DELETE FROM v11 WHERE a < 5 RETURNING * ;
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ERROR HY000: The target table v11 of the DELETE is not updatable
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DROP VIEW v11;
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PREPARE stmt FROM
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"DELETE FROM t1 WHERE a=2 ORDER BY b LIMIT 1 RETURNING a, UPPER(b)";
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EXECUTE stmt;
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a UPPER(b)
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2 BB
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SELECT * FROM t1;
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a b
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7 ggggggg
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1 a
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3 ccc
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4 dddd
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1 A
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4 DDDD
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5 EEEEE
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7 GGGGGGG
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2 bb
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EXECUTE stmt;
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a UPPER(b)
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2 BB
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SELECT * FROM t1;
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a b
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7 ggggggg
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1 a
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3 ccc
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4 dddd
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1 A
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4 DDDD
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5 EEEEE
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7 GGGGGGG
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DEALLOCATE PREPARE stmt;
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DROP VIEW v1;
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DROP TABLE t1,t2;
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DROP TABLE t1c,t2c;
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#
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# Bug mdev-4918: DELETE ... RETURNING subquery with more than 1 row
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#
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CREATE TABLE t1 (i1 int);
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INSERT INTO t1 VALUES (1),(2);
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CREATE TABLE t2 (i2 int);
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INSERT INTO t2 VALUES (1),(2);
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DELETE FROM t1 ORDER BY i1 RETURNING ( SELECT i2 FROM t2 );
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ERROR 21000: Subquery returns more than 1 row
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DROP TABLE t1,t2;
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#
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# MDEV-4919: Packets out of order on a SELECT after calling a procedure with DELETE .. RETURNING
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#
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CREATE TABLE t1 (i INT);
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INSERT INTO t1 VALUES (1),(2);
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CREATE PROCEDURE p1 (a INT)
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BEGIN
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DELETE FROM t1 WHERE i = a RETURNING *;
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INSERT INTO t1 VALUES (a);
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END |
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CALL p1(1);
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i
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1
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SELECT * FROM t1;
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i
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1
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2
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DROP PROCEDURE p1;
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DROP TABLE t1;
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