From 7e4d1600a621ee4e786e715bc82eaad1113dba0e Mon Sep 17 00:00:00 2001
From: Andrew Dunstan <andrew@dunslane.net>
Date: Wed, 26 Mar 2014 18:20:56 -0400
Subject: [PATCH] Fix uninitialized variables in json's
 populate_record_worker().

Peter Geoghegan.
---
 src/backend/utils/adt/jsonfuncs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/backend/utils/adt/jsonfuncs.c b/src/backend/utils/adt/jsonfuncs.c
index bf164677142..73923951e80 100644
--- a/src/backend/utils/adt/jsonfuncs.c
+++ b/src/backend/utils/adt/jsonfuncs.c
@@ -2160,6 +2160,8 @@ populate_record_worker(FunctionCallInfo fcinfo, bool have_record_arg)
 		my_extra = (RecordIOData *) fcinfo->flinfo->fn_extra;
 		my_extra->record_type = InvalidOid;
 		my_extra->record_typmod = 0;
+		my_extra->ncolumns = ncolumns;
+		MemSet(my_extra->columns, 0, sizeof(ColumnIOData) * ncolumns);
 	}
 
 	if (have_record_arg && (my_extra->record_type != tupType ||
-- 
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