From f196738534baa95badd9d8f1debb5822240ebc6b Mon Sep 17 00:00:00 2001 From: Robert Haas Date: Thu, 17 Feb 2011 10:29:42 -0500 Subject: [PATCH] Add some words of caution to elog.c. Stephen Frost, somewhat rewritten by me --- src/backend/utils/error/elog.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c index a1a449f2dd..5679d5b9c1 100644 --- a/src/backend/utils/error/elog.c +++ b/src/backend/utils/error/elog.c @@ -3,6 +3,12 @@ * elog.c * error logging and reporting * + * Because of the extremely high rate at which log messages can be generated, + * we need to be mindful of the performance cost of obtaining any information + * that may be logged. Also, it's important to keep in mind that this code may + * get called from within an aborted transaction, in which case operations + * such as syscache lookups are unsafe. + * * Some notes about recursion and errors during error processing: * * We need to be robust about recursive-error scenarios --- for example, -- 2.11.0