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Jon Olav Hauglid authored
concurrent SHOW CREATE The problem was that a SHOW CREATE TABLE statement issued inside a transaction did not release its metadata locks at the end of the statement execution. This happened even if SHOW CREATE TABLE is an information statement. The consequence was that SHOW CREATE TABLE was able to block other connections from accessing the table (e.g. using ALTER TABLE). This patch fixes the problem by explicitly releasing any metadata locks taken by SHOW CREATE TABLE after the statement completes. Test case added to show_check.test.
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