Hello, I'm not sure I've chosen the most appropriate thread for reporting the issue, but maybe you would like to look at code comments related to SQL/JSON constructors:
* Transform JSON_ARRAY() constructor. * * JSON_ARRAY() is transformed into json[b]_build_array[_ext]() call * depending on the output JSON format. The first argument of * json[b]_build_array_ext() is absent_on_null. * Transform JSON_OBJECT() constructor. * * JSON_OBJECT() is transformed into json[b]_build_object[_ext]() call * depending on the output JSON format. The first two arguments of * json[b]_build_object_ext() are absent_on_null and check_unique. But the referenced functions were removed at [1]; Nikita Glukhov wrote:
I have removed json[b]_build_object_ext() and json[b]_build_array_ext().
(That thread seems too old for the current discussion.) Also, a comment above transformJsonObjectAgg() references json[b]_objectagg[_unique][_strict](key, value), but I could find json_objectagg() only. [1] https://www.postgresql.org/message-id/be40362b-7821-7422-d33f-fbf1c61bb3e3%40postgrespro.ru Best regards, Alexander