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pgsql: Return NULL from json_object_agg if it gets no rows.

From:	Andrew Dunstan <andrew(at)dunslane(dot)net>
To:	pgsql-committers(at)postgresql(dot)org
Subject:	pgsql: Return NULL from json_object_agg if it gets no rows.
Date:	2014-09-25 12:20:16
Message-ID:	E1XX81w-0005rz-IN@gemulon.postgresql.org
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Return NULL from json_object_agg if it gets no rows.

This makes it consistent with the docs and with all other builtin
aggregates apart from count().

Branch
------
REL9_4_STABLE

Modified Files
--------------
src/backend/utils/adt/json.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

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