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e2087c6e8d
Temporary table being created by outer statement should not be visible to inner statement. And if inner statement creates a table with same name. The whole statement should fail with ER_TABLE_EXISTS_ERROR. Implemented by temporarily de-linking the TABLE_SHARE being created by outer statement so that it remains hidden to the inner statement.
156 lines
2.7 KiB
Plaintext
156 lines
2.7 KiB
Plaintext
#
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# MDEV-5535: Cannot reopen temporary table
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#
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DROP DATABASE IF EXISTS temp_db;
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CREATE DATABASE temp_db;
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USE temp_db;
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#
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# Reopen temporary table
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#
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CREATE TEMPORARY TABLE t1(i int)ENGINE=INNODB;
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INSERT INTO t1 VALUES(1), (2);
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SELECT * FROM t1 a, t1 b;
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i i
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1 1
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2 1
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1 2
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2 2
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DROP TABLE t1;
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#
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# CREATE & Stored routines
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#
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CREATE FUNCTION f1() RETURNS INT
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BEGIN
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DROP TEMPORARY TABLE t1;
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RETURN 1;
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END|
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CREATE TEMPORARY TABLE t1 AS SELECT f1();
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ERROR 42S02: Unknown table 'temp_db.t1'
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DROP FUNCTION f1;
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CREATE FUNCTION f2() RETURNS INT
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BEGIN
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CREATE TEMPORARY TABLE t2(i INT);
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INSERT INTO t2 VALUES(1), (2);
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RETURN 1;
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END|
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CREATE TEMPORARY TABLE t2 AS SELECT f2();
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ERROR 42S01: Table 't2' already exists
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SELECT * FROM t2;
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i
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1
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2
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DROP TABLE t2;
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DROP FUNCTION f2;
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CREATE TEMPORARY TABLE t3 AS SELECT 1 AS a;
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CREATE PROCEDURE p1()
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BEGIN
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DROP TEMPORARY TABLE t3;
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end|
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CREATE FUNCTION f3() RETURNS INT
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BEGIN
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CALL p1();
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RETURN 1;
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END|
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PREPARE STMT FROM "SELECT f3() AS my_Column, a FROM t3";
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EXECUTE STMT;
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ERROR HY000: Can't reopen table: 't3'
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DROP TABLE t3;
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DROP FUNCTION f3;
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DROP PROCEDURE p1;
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CREATE TEMPORARY TABLE t4 (i INT);
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INSERT INTO t4 VALUES(1), (2);
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CREATE FUNCTION f4() RETURNS INT
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BEGIN
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DROP TEMPORARY TABLE t4;
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RETURN 1;
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END|
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SELECT f4() FROM t4;
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ERROR HY000: Can't reopen table: 't4'
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SELECT * FROM t4;
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i
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1
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2
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DROP TABLE t4;
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DROP FUNCTION f4;
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CREATE TEMPORARY TABLE t5 AS SELECT 1 AS a;
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CREATE PROCEDURE p2()
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BEGIN
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DROP TEMPORARY TABLE t5;
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END|
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CREATE FUNCTION f5() RETURNS INT
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BEGIN
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CALL p2();
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RETURN 1;
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END|
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SELECT f5() AS my_column, a FROM t5;
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ERROR HY000: Can't reopen table: 't5'
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DROP TABLE t5;
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DROP FUNCTION f5;
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DROP PROCEDURE p2;
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#
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# CTAS
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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 TEMPORARY TABLE t1
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SELECT temp_1.i a, temp_2.i b FROM t1 AS temp_1, t1 AS temp_2;
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SELECT * FROM t1;
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a b
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1 1
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2 1
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1 2
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2 2
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DROP TABLE t1;
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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 TABLE t1;
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#
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# HANDLER
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#
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CREATE TABLE t1 (a INT, KEY a(a));
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INSERT INTO t1 (a) VALUES (1), (2), (3), (4), (5);
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CREATE TABLE t2 (a INT, KEY a (a)) SELECT * FROM t1;
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CREATE TEMPORARY TABLE t3 (a INT, KEY a (a)) SELECT * FROM t2;
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HANDLER t3 OPEN;
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SELECT * FROM t1;
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a
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1
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2
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3
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4
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5
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LOCK TABLE t1 READ;
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HANDLER t3 OPEN;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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UNLOCK TABLES;
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HANDLER t3 OPEN;
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ERROR 42000: Not unique table/alias: 't3'
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HANDLER t3 READ NEXT;
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a
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1
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HANDLER t3 OPEN AS t3_1;
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HANDLER t3_1 READ NEXT;
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a
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1
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HANDLER t3_1 READ NEXT;
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a
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2
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HANDLER t3 CLOSE;
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HANDLER t3_1 CLOSE;
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DROP TEMPORARY TABLE t3;
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DROP TABLE t1, t2;
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#
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# INSERT-SELECT
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#
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CREATE TEMPORARY TABLE t4 (a INT) ENGINE=MYISAM;
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INSERT INTO t4 VALUES(1), (2);
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INSERT INTO t4 SELECT * FROM t4;
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SELECT COUNT(*) FROM t4;
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COUNT(*)
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4
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DROP TABLE t4;
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# Cleanup
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DROP DATABASE temp_db;
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