Re: [SQL] Is there a type like a growable array, similar Vector at
Dongsoo Yoon wrote: > In Oracle, there is a type like a growable array, similar Vector at > Java language. I always find the manuals good for this information. Looking in the section on "Arrays", in "Data Types" BEGIN QUOTE A stored array value can be enlarged by assigning to an element adjacent to those already present, or by assigning to a slice that is adjacent to or overlaps the data already present. For example, if array myarray currently has 4 elements, it will have five elements after an update that assigns to myarray[5]. Currently, enlargement in this fashion is only allowed for one-dimensional arrays, not multidimensional arrays. END QUOTE Is that helpful? -- Richard Huxton Archonet Ltd ---(end of broadcast)--- TIP 4: Have you searched our list archives? http://archives.postgresql.org
Re: [SQL] Multi-column returns from pgsql
or just return setof RECORD (version 7.4 +) -- Original Message --- From: Tony Wasson <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Cc: "Mark R. Dingee" <[EMAIL PROTECTED]>, pgsql-sql@postgresql.org Sent: Fri, 22 Jul 2005 11:11:09 -0700 Subject: Re: [SQL] Multi-column returns from pgsql > On 7/22/05, Jim Buttafuoco <[EMAIL PROTECTED]> wrote: > > Mark, > > > > Instead of RETURN NEXT rec.txt1; RETURN NEXT rec.txt2; just use RETURN > > NEXT rec; > > > > then your select statement would be > > select * from my_func() as (txt1 text,txt2 text); > > > > Jim > > Besides a simple RETURN NEXT, you'll need to return a SETOF some > composite type. You can do something like > > CREATE TYPE twotexts_t AS (txt1 TEXT, txt2 TEXT); > > CREATE OR REPLACE FUNCTION my_func() returns SETOF twotexts_t AS ' > DECLARE >rec record; > BEGIN >FOR rec IN SELECT txt1, txt2 FROM mytable LOOP > RETURN NEXT >END LOOP; >RETURN; > END;' language 'plpgsql'; > > ---(end of broadcast)--- > TIP 6: explain analyze is your friend --- End of Original Message --- ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
