>>>>> "Tom" == Tom Lane <t...@sss.pgh.pa.us> writes:
[empty arrays and containment ops] Tom> From what I understand of GIN's internal workings, this is Tom> unfixable because there is nothing to make an index entry on Tom> when looking at an empty array. Unless you know of a trick to Tom> get around that, we've got a problem here. Umm. In theory, could the extract function return some distinct value when applied to an empty array, and the extract_query function include the same value when extracting a query? It's not very clean, since it means that the element type for an index of sometype[] is no longer sometype, but it would allow the semantics to be kept consistent. [whether it is worth the pain of doing this is a separate question] -- Andrew (irc:RhodiumToad) -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
