On Thu, Nov 14, 2013 at 9:42 AM, Hannu Krosing <ha...@2ndquadrant.com> wrote: > This is supported by the fact that current functions on json-source > treat it as json-object (for example key lookup gives you the value > of latest key and not a list of all matching key values).
yeah. hm. that's a good point. Maybe there's a middle ground here: I bet the compatibility issues would be minimized to an acceptable level if the 'xxx_to_json' functions maintained their current behaviors; they would construct the json type in a special internal mode that would behave like the current type does. In other words, the marshalling into binary structure could happen when: *) stored do a column in a table *) when any modifying routine is called, updating a key, value, etc *) manually via a function but not at cast time. This preserves compatibility for the important points and allows serialization of structures that are difficult with the binary mode variant. merln -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers