2010/9/1 Tom Lane <t...@sss.pgh.pa.us>: > "David E. Wheeler" <da...@kineticode.com> writes: >> On Sep 1, 2010, at 11:09 AM, Pavel Stehule wrote: >>> Then you can eliminate NULLs with simple function > >> Kind of defeats the purpose of the efficiency of the aggregate. > > Well, you can build your own version of array_agg with the same > implementation, except you mark the transition function as strict ... >
I am checking this now, and it is not possible - it needs a some initial value and there isn't possible to set a "internal" value. probably some C coding is necessary. Regards Pavel > regards, tom lane > -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
