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Commit21c343b

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Clean up properly error_context_stack in autovacuum worker on exception
Any callback set would have no meaning in the context of an exception.As an autovacuum worker exits quickly in this context, this could beonly an issue within EmitErrorReport(), where the elog hook is forexample called. That's unlikely to going to be a problem, but let's beclean and consistent with other code paths handling exceptions. This ispresent since2909419, which introduced autovacuum.Author: Ashwin AgrawalReviewed-by: Tom Lane, Michael PaquierDiscussion:https://postgr.es/m/CALfoeisM+_+dgmAdAOHAu0k-ZpEHHqSSG=GRf3pKJGm8OqWX0w@mail.gmail.comBackpatch-through: 9.4
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‎src/backend/postmaster/autovacuum.c

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@@ -1570,6 +1570,9 @@ AutoVacWorkerMain(int argc, char *argv[])
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*/
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if (sigsetjmp(local_sigjmp_buf,1)!=0)
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{
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/* since not using PG_TRY, must reset error stack by hand */
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error_context_stack=NULL;
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/* Prevents interrupts while cleaning up */
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HOLD_INTERRUPTS();
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