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b1c6dc6e90
anticipate different execution paths resulting in different thd->proc_info. - Fixed subselect_cache to contain correct results. The results are currently wrong in 5.3, but are correct in 5.2, and 5.3-mwl89.
63 lines
1.5 KiB
PHP
63 lines
1.5 KiB
PHP
#
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# SUMMARY
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# Check if statement reading table '$table' takes shared locks
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# on some of its rows.
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#
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# PARAMETERS
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# $table Table for which presence of row locks should be checked.
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# $con_aux Name of auxiliary connection to be used by this script.
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# $statement Statement to be checked.
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# $wait_statement Sub-statement which is supposed to acquire locks (should
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# be the same as $statement for ordinary statements).
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#
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# EXAMPLE
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# innodb_mysql_lock2.test
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#
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--disable_result_log
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--disable_query_log
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connection default;
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begin;
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--eval select * from $table for update;
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connection $con_aux;
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begin;
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--send_eval $statement;
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--enable_result_log
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--enable_query_log
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connection default;
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# Wait until statement is successfully blocked because
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# all rows in table are X-locked. This means that at
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# least it acquires S-locks on some of rows.
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let $wait_condition=
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select count(*) = 1 from information_schema.processlist
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where state in ("Sending data","statistics", "preparing", "updating",
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"executing", "Searching rows for update") and
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info = "$wait_statement";
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--source include/wait_condition.inc
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--disable_result_log
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--disable_query_log
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rollback;
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connection $con_aux;
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--reap
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rollback;
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connection default;
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--enable_result_log
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--enable_query_log
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if ($success)
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{
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--echo Success: '$statement' takes shared row locks on '$table'.
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}
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if (!$success)
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{
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--echo Error: '$statement' hasn't taken shared row locks on '$table'!
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}
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