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175ff6598e
postgresql/src/include/utils
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Robert Haas 175ff6598e Fix possible crash reading pg_stat_activity. 
With the old code, a backend that read pg_stat_activity without ever
having executed a parallel query might see a backend in the midst of
executing one waiting on a DSA LWLock, resulting in a crash.  The
solution is for backends to register the tranche at startup time, not
the first time a parallel query is executed.

Report by Andreas Seltenreich.  Patch by me, reviewed by Thomas Munro.
2017-01-05 12:27:09 -05:00
..
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