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d20a96f9c1
In MariaDB, we have a confusing problem where: * The transaction_isolation option can be set in a configuration file, but it cannot be set dynamically. * The tx_isolation system variable can be set dynamically, but it cannot be set in a configuration file. Therefore, we have two different names for the same thing in different contexts. This is needlessly confusing, and it complicates the documentation. The same thing applys for transaction_read_only. MySQL 5.7 solved this problem by making them into system variables. https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-20.html This commit takes a similar approach by adding new system variables and marking the original ones as deprecated. This commit also resolves some legacy problems related to SET STATEMENT and transaction_isolation.
49 lines
1.2 KiB
Text
49 lines
1.2 KiB
Text
--source include/not_embedded.inc
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--echo #
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--echo # WL#5968: Implement START TRANSACTION READ (WRITE|ONLY);
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--echo #
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--echo #
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--echo # Test9: The --transaction-read-only startup option.
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--echo # Check that the option was set by the .opt file.
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SELECT @@transaction_read_only;
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--echo # Also for new connections.
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connect (con1, localhost, root);
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SELECT @@transaction_read_only;
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SET SESSION TRANSACTION READ WRITE;
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SELECT @@transaction_read_only;
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disconnect con1;
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--source include/wait_until_disconnected.inc
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connection default;
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SELECT @@transaction_read_only;
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--echo #
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--echo # Test 10: SET TRANSACTION / START TRANSACTION + implicit commit.
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SET SESSION TRANSACTION READ WRITE;
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--disable_ps_protocol
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SET TRANSACTION READ ONLY;
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--echo # Since DDL does implicit commit before starting, SET TRANSACTION
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--echo # will have no effect because the "next" transaction will already
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--echo # be over before the DDL statement starts.
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CREATE TABLE t1 (a INT);
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START TRANSACTION READ ONLY;
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--echo # The same happens with START TRANSACTION
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DROP TABLE t1;
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--enable_ps_protocol
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--echo #
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--echo # Test 11: INSERT DELAYED
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CREATE TABLE t1(a INT);
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START TRANSACTION READ ONLY;
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--error ER_CANT_EXECUTE_IN_READ_ONLY_TRANSACTION
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INSERT DELAYED INTO t1 VALUES (1);
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COMMIT;
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DROP TABLE t1;
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