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C comment: explain procArray->pgprocnos[]

2022年10月11日 17:08:17 +0000 (13:08 -0400)

committer Bruce Momjian <bruce@momjian.us>

2022年10月11日 17:08:17 +0000 (13:08 -0400)

Reported-by: Aleksander Alekseev
Discussion: https://postgr.es/m/CAJ7c6TOs9Dh3KNR2kiQJ3Ow0=TBucL_57DAbm--2p8w5x_8YXQ@mail.gmail.com

Author: Aleksander Alekseev

Backpatch-through: master

src/include/storage/proc.h patch | blob | blame | history

diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h

index 91824b469180f836bb5e72bf74c590bd5e59f13b..ed874459b380db756a28fb8fb1efb13ba2b66ced 100644 (file)

--- a/src/include/storage/proc.h

+++ b/src/include/storage/proc.h

@@ -193,7 +193,11 @@ struct PGPROC

int pgxactoff; /* offset into various ProcGlobal->arrays with

* data mirrored from this PGPROC */

- int pgprocno;

+ int pgprocno; /* Number of this PGPROC in

+ * ProcGlobal->allProcs array. This is set

+ * once by InitProcGlobal().

+ * ProcGlobal->allProcs[n].pgprocno == n */

/* These fields are zero while a backend is still starting up: */

BackendId backendId; /* This backend's backend ID (if assigned) */

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