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The problem was that in read only mode (read_only enabled), the server would mistakenly deny data modification attempts for temporary tables which belong to a transactional storage engine (eg. InnoDB). The solution is to allow transactional temporary tables to be modified under read only mode. As a whole, the read only mode does not apply to any kind of temporary table.
232 lines
5.4 KiB
Plaintext
232 lines
5.4 KiB
Plaintext
# should work with embedded server after mysqltest is fixed
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-- source include/not_embedded.inc
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-- source include/have_innodb.inc
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#
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# BUG#11733: COMMITs should not happen if read-only is set
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#
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--disable_warnings
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DROP TABLE IF EXISTS table_11733 ;
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--enable_warnings
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# READ_ONLY does nothing to SUPER users
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# so we use a non-SUPER one:
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grant CREATE, SELECT, DROP on *.* to test@localhost;
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connect (con1,localhost,test,,test);
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connection default;
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set global read_only=0;
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# Any transactional engine will do
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create table table_11733 (a int) engine=InnoDb;
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connection con1;
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BEGIN;
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insert into table_11733 values(11733);
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connection default;
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set global read_only=1;
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connection con1;
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select @@global.read_only;
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select * from table_11733 ;
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--error ER_OPTION_PREVENTS_STATEMENT
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COMMIT;
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connection default;
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set global read_only=0;
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drop table table_11733 ;
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drop user test@localhost;
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disconnect con1;
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#
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# Bug #35732: read-only blocks SELECT statements in InnoDB
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#
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# Test 1: read only mode
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GRANT CREATE, SELECT, DROP ON *.* TO test@localhost;
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connect(con1, localhost, test, , test);
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connection default;
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CREATE TABLE t1(a INT) ENGINE=INNODB;
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INSERT INTO t1 VALUES (0), (1);
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SET GLOBAL read_only=1;
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connection con1;
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SELECT * FROM t1;
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BEGIN;
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SELECT * FROM t1;
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COMMIT;
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connection default;
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SET GLOBAL read_only=0;
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#
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# Test 2: global read lock
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#
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FLUSH TABLES WITH READ LOCK;
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connection con1;
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SELECT * FROM t1;
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BEGIN;
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SELECT * FROM t1;
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COMMIT;
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connection default;
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UNLOCK TABLES;
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DROP TABLE t1;
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DROP USER test@localhost;
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disconnect con1;
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--echo echo End of 5.1 tests
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--echo #
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--echo # Bug#33669: Transactional temporary tables do not work under --read-only
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--echo #
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--disable_warnings
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DROP DATABASE IF EXISTS db1;
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--enable_warnings
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--echo # Setup user and tables
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CREATE USER bug33669@localhost;
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CREATE DATABASE db1;
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CREATE TABLE db1.t1 (a INT) ENGINE=INNODB;
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CREATE TABLE db1.t2 (a INT) ENGINE=INNODB;
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INSERT INTO db1.t1 VALUES (1);
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INSERT INTO db1.t2 VALUES (2);
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GRANT CREATE TEMPORARY TABLES, DROP, INSERT, DELETE, UPDATE,
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SELECT, LOCK TABLES ON db1.* TO bug33669@localhost;
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SET GLOBAL READ_ONLY = ON;
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connect(con1,localhost,bug33669,,db1);
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--echo # Connection con1 (user bug33669):
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--echo
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--echo # Create, insert and drop temporary table:
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--echo
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CREATE TEMPORARY TABLE temp (a INT) ENGINE=INNODB;
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INSERT INTO temp VALUES (1);
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DROP TABLE temp;
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--echo
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--echo # Lock base tables and use temporary table:
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--echo
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CREATE TEMPORARY TABLE temp (a INT) ENGINE=INNODB;
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LOCK TABLES t1 READ, t2 READ;
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SELECT * FROM t1;
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INSERT INTO temp values (1);
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SELECT * FROM t2;
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UNLOCK TABLES;
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DROP TABLE temp;
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--echo
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--echo # Transaction
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--echo
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BEGIN;
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SELECT * FROM t1;
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CREATE TEMPORARY TABLE temp (a INT) ENGINE=INNODB;
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--error ER_OPTION_PREVENTS_STATEMENT
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INSERT INTO t1 VALUES (1);
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INSERT INTO temp VALUES (1);
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SELECT * FROM t2;
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ROLLBACK;
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SELECT * FROM temp;
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DROP TABLE temp;
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--echo
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--echo # Lock base table as READ and temporary table as WRITE:
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--echo
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CREATE TEMPORARY TABLE temp (a INT) ENGINE=INNODB;
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LOCK TABLES t1 READ, temp WRITE;
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SELECT * FROM t1;
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SELECT * FROM temp;
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--error ER_OPTION_PREVENTS_STATEMENT
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INSERT INTO t1 VALUES (1);
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INSERT INTO temp VALUES (1);
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DROP TABLE temp;
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UNLOCK TABLES;
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--echo
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--echo # Lock temporary table that shadows a base table:
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--echo
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CREATE TEMPORARY TABLE t1 (a INT) ENGINE=INNODB;
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LOCK TABLES t1 WRITE;
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DROP TABLE t1;
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM t1;
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--echo
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--echo # INSERT SELECT from base table into temporary table:
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--echo
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CREATE TEMPORARY TABLE temp1 (a INT) ENGINE=INNODB;
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CREATE TEMPORARY TABLE temp2 LIKE temp1;
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BEGIN;
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INSERT INTO temp1 VALUES (10);
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INSERT INTO temp2 VALUES (10);
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INSERT INTO temp1 SELECT * FROM t1;
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INSERT INTO temp2 SELECT * FROM t2;
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SELECT * FROM temp1 ORDER BY a;
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SELECT * FROM temp2 ORDER BY a;
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ROLLBACK;
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SELECT * FROM temp1,temp2;
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LOCK TABLES t1 READ, t2 READ;
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INSERT INTO temp1 VALUES (10);
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INSERT INTO temp2 VALUES (10);
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INSERT INTO temp1 SELECT * FROM t1;
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INSERT INTO temp2 SELECT * FROM t2;
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SELECT * FROM temp1 ORDER BY a;
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SELECT * FROM temp2 ORDER BY a;
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UNLOCK TABLES;
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DELETE temp1, temp2 FROM temp1, temp2;
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INSERT INTO temp1 VALUES (10);
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INSERT INTO temp2 VALUES (10);
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INSERT INTO temp1 SELECT * FROM t1;
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INSERT INTO temp2 SELECT * FROM t2;
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SELECT * FROM temp1 ORDER BY a;
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SELECT * FROM temp2 ORDER BY a;
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DROP TABLE temp1, temp2;
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--echo
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--echo # INSERT and INSERT SELECT that uses subqueries:
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CREATE TEMPORARY TABLE temp1 (a INT) ENGINE=INNODB;
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CREATE TEMPORARY TABLE temp2 LIKE temp1;
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INSERT INTO temp1 (a) VALUES ((SELECT MAX(a) FROM t1));
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LOCK TABLES t2 READ;
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INSERT INTO temp2 (a) VALUES ((SELECT MAX(a) FROM t2));
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UNLOCK TABLES;
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LOCK TABLES t1 READ, t2 READ;
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INSERT INTO temp1 SELECT * FROM t1 WHERE a < (SELECT MAX(a) FROM t2);
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INSERT INTO temp2 SELECT * FROM t2 WHERE a > (SELECT MAX(a) FROM t1);
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UNLOCK TABLES;
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INSERT INTO temp1 SELECT * FROM t1 WHERE a < (SELECT MAX(a) FROM t2);
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INSERT INTO temp2 SELECT * FROM t2 WHERE a > (SELECT MAX(a) FROM t1);
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SELECT * FROM temp1 ORDER BY a;
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SELECT * FROM temp2 ORDER BY a;
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DROP TABLE temp1, temp2;
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--echo
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--echo # Multiple table update:
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--echo
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CREATE TEMPORARY TABLE temp1 (a INT) ENGINE=INNODB;
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CREATE TEMPORARY TABLE temp2 LIKE temp1;
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INSERT INTO temp1 VALUES (1),(2);
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INSERT INTO temp2 VALUES (3),(4);
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UPDATE temp1,temp2 SET temp1.a = 5, temp2.a = 10;
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SELECT * FROM temp1, temp2;
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DROP TABLE temp1, temp2;
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--echo
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--echo # Disconnect and cleanup
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--echo
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disconnect con1;
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connection default;
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SET GLOBAL READ_ONLY = OFF;
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DROP USER bug33669@localhost;
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DROP DATABASE db1;
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