From a7b92d1c6807750723b668bc2bdde1c4698c9d64 Mon Sep 17 00:00:00 2001 From: Michael Paquier Date: Thu, 14 Sep 2023 10:30:30 +0900 Subject: [PATCH] Improve error message on snapshot import in snapmgr.c When a snapshot file fails to be read in ImportSnapshot(), it would issue an ERROR as "invalid snapshot identifier" when opening a stream for it in read-only mode. This error message is reworded to be the same as all the other messages used in this case on failure, which is useful when debugging this area. Thinko introduced by bb446b689b66 where snapshot imports have been added. A backpatch down to 11 is done as this can improve any work related to snapshot imports in older branches. Author: Bharath Rupireddy Reviewed-by: Daniel Gustafsson Discussion: https://postgr.es/m/CALj2ACWmr=3KdxDkm8h7Zn1XxBoF6hdzq8WQyMn2y1OL5RYFrg@mail.gmail.com Backpatch-through: 11 --- src/backend/utils/time/snapmgr.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/backend/utils/time/snapmgr.c b/src/backend/utils/time/snapmgr.c index 3037cf478d..dbba2f7d7b 100644 --- a/src/backend/utils/time/snapmgr.c +++ b/src/backend/utils/time/snapmgr.c @@ -1443,8 +1443,9 @@ ImportSnapshot(const char *idstr) f = AllocateFile(path, PG_BINARY_R); if (!f) ereport(ERROR, - (errcode(ERRCODE_INVALID_PARAMETER_VALUE), - errmsg("invalid snapshot identifier: \"%s\"", idstr))); + (errcode_for_file_access(), + errmsg("could not open file \"%s\" for reading: %m", + path))); /* get the size of the file so that we know how much memory we need */ if (fstat(fileno(f), &stat_buf))