doc: explain use of json_populate_record{set}()

Bruce Momjian <bruce@momjian.us>

Commit: 87a19eb9bf373f51e966ab496cce6bf3ee9cd909
Author: Bruce Momjian <bruce@momjian.us>
Date: 2018-06-19T17:43:40Z
Releases: 11.0
doc:  explain use of json_populate_record{set}()

The set-returning nature of these functions make their use unclear. The
modified paragraph was added in PG 9.4.

Reported-by: yshaladi@denodo.com

Discussion:  https://postgr.es/m/152571684246.9460.18059951267371255159@wrigleys.postgresql.org

Backpatch-through: 9.4

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doc/src/sgml/func.sgml modified +21 −7

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