Document strange jsonb sort order for empty top level arrays Slightly faulty logic in the original jsonb code (commit d9134d0a355) results in an empty top level array sorting less than a json null. We can't change the sort order now since it would affect btree indexes over jsonb, so document the anomaly.
Backpatch to all live branches (13 .. 17) In master, also add a code comment noting the anomaly. Reported-by: Yan Chengpen Reviewed-by: Jian He Discussion: https://postgr.es/m/osbpr01mb45199dd8da2d1cecd50518188e...@osbpr01mb4519.jpnprd01.prod.outlook.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/30f017626308a06cf0c0c82a706a1ba1b07df34a Modified Files -------------- doc/src/sgml/json.sgml | 3 ++- src/backend/utils/adt/jsonb_util.c | 7 +++++++ 2 files changed, 9 insertions(+), 1 deletion(-)