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48 lines
1.1 KiB
PHP
48 lines
1.1 KiB
PHP
#
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# TRANSACTION WITH CONSISTENT SNAPSHOT
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#
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--source ../have_engine.inc
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# Save the initial number of concurrent sessions
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--source include/count_sessions.inc
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--disable_warnings
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DROP TABLE IF EXISTS t1;
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--enable_warnings
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connect (con1,localhost,root,,);
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connect (con2,localhost,root,,);
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connection con1;
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let $create_definition = a $int_col;
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--source ../create_table.inc
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eval SET SESSION TRANSACTION ISOLATION LEVEL $trx_isolation;
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# While a consistent snapshot transaction is executed,
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# no external inserts should be visible to the transaction.
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# But it should only work this way for REPEATABLE-READ and SERIALIZABLE
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START TRANSACTION WITH CONSISTENT SNAPSHOT;
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connection con2;
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INSERT INTO t1 (a) VALUES (1);
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if ($mysql_errname)
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{
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--echo # INSERT finished with error $mysql_errname
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}
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connection con1;
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--echo # If consistent read works on this isolation level ($trx_isolation), the following SELECT should not return the value we inserted (1)
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SELECT a FROM t1;
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COMMIT;
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connection default;
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disconnect con1;
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disconnect con2;
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DROP TABLE t1;
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--source include/wait_until_count_sessions.inc
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