From 946fad350283a46d1eb36d97d4af14b0732ea585 Mon Sep 17 00:00:00 2001 From: Konstantin Osipov Date: Fri, 7 May 2010 20:28:59 +0400 Subject: Draft patch that fixes and a sketches test cases for: Bug#20837 Apparent change of isolation level during transaction, Bug#46527 COMMIT AND CHAIN RELEASE does not make sense, Bug#53343 completion_type=1, COMMIT/ROLLBACK AND CHAIN don't preserve the isolation level Bug#53346 completion_type has strange effect in a stored procedure/prepared statement Make thd->tx_isolation mean strictly "current transaction isolation level" Make thd->variables.tx_isolation mean "current session isolation level". The current transaction isolation level is now established at transaction start. If there was a SET TRANSACTION ISOLATION LEVEL statement, the value is taken from it. Otherwise, the session value is used. A change in a session value, made while a transaction is active, whereas still allowed, no longer has any effect on the current transaction isolation level. This is an incompatible change. A change in a session isolation level, made while there is no active transaction, overrides SET TRANSACTION statement, if there was any. Changed the impelmentation to not look at @@session.completion_type in the parser, and thus fixed Bug#53346. Changed the parser to not allow AND NO CHAIN RELEASE, and thus fixed Bug#46527. Changed the transaction API to take the current transaction isolation level into account: - BEGIN/COMMIT now do preserve the current transaction isolation level if chaining is on. - implicit commit, XA COMMIT or XA ROLLBACK or autocommit don't. --- mysql-test/r/parser.result | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) (limited to 'mysql-test/r/parser.result') diff --git a/mysql-test/r/parser.result b/mysql-test/r/parser.result index 467bb7c5cb8..0cfde6dd2a0 100644 --- a/mysql-test/r/parser.result +++ b/mysql-test/r/parser.result @@ -618,3 +618,48 @@ DROP TABLE t1, t2, t3; # # End of 5.1 tests # +# Bug#46527 "COMMIT AND CHAIN RELEASE does not make sense" +# +COMMIT AND CHAIN RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'RELEASE' at line 1 +COMMIT AND NO CHAIN RELEASE; +COMMIT RELEASE; +COMMIT CHAIN RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CHAIN RELEASE' at line 1 +COMMIT NO CHAIN RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CHAIN RELEASE' at line 1 +COMMIT AND NO RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'RELEASE' at line 1 +COMMIT AND RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'RELEASE' at line 1 +COMMIT NO RELEASE; +COMMIT CHAIN NO RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CHAIN NO RELEASE' at line 1 +COMMIT NO CHAIN NO RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CHAIN NO RELEASE' at line 1 +COMMIT AND RELEASE CHAIN; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'RELEASE CHAIN' at line 1 +COMMIT AND NO CHAIN NO RELEASE; +ROLLBACK AND CHAIN RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'RELEASE' at line 1 +ROLLBACK AND NO CHAIN RELEASE; +ROLLBACK RELEASE; +ROLLBACK CHAIN RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CHAIN RELEASE' at line 1 +ROLLBACK NO CHAIN RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CHAIN RELEASE' at line 1 +ROLLBACK AND NO RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'RELEASE' at line 1 +ROLLBACK AND RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'RELEASE' at line 1 +ROLLBACK NO RELEASE; +ROLLBACK CHAIN NO RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CHAIN NO RELEASE' at line 1 +ROLLBACK NO CHAIN NO RELEASE; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CHAIN NO RELEASE' at line 1 +ROLLBACK AND RELEASE CHAIN; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'RELEASE CHAIN' at line 1 +ROLLBACK AND NO CHAIN NO RELEASE; +# +# End of 5.5 tests +# -- cgit v1.2.1