Doc: improve documentation of the JSON object aggregates. Say which value wins for a repeated key, and how skipped null values interact with that and with the unique check. Also point out that duplicate keys behave differently for json and jsonb cases. (I still think that's a bug, but at least now it's documented.)
Author: shihao zhong <[email protected]> Reviewed-by: Tom Lane <[email protected]> Discussion: https://postgr.es/m/CAGRkXqTCfSu=aEUCvKDTGroEWOcyz3MCv4Xi8x1PZ1T1rEmG=q...@mail.gmail.com Backpatch-through: 14 Branch ------ REL_19_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/f63cf8bf64f4583677ce5607fda76e26381aeac3 Modified Files -------------- doc/src/sgml/func/func-aggregate.sgml | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
