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Commitaeebacf

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Fix mishandling of background worker PGPROCs in EXEC_BACKEND builds.
InitProcess() relies on IsBackgroundWorker to decide whether the PGPROCfor a new backend should be taken from ProcGlobal's freeProcs or frombgworkerFreeProcs. In EXEC_BACKEND builds, InitProcess() is calledsooner than in non-EXEC_BACKEND builds, and IsBackgroundWorker wasn'tgetting initialized soon enough.Report by Noah Misch. Diagnosis and fix by me.
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‎src/backend/postmaster/postmaster.c

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@@ -4672,6 +4672,9 @@ SubPostmasterMain(int argc, char *argv[])
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{
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intshmem_slot;
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/* do this as early as possible; in particular, before InitProcess() */
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IsBackgroundWorker= true;
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/* Close the postmaster's sockets */
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ClosePostmasterPorts(false);
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