In response to Louis-David Mitterrand : > Hi, > > I'm trying the following query: > > select array_agg(t1.id) from table1 t1 join table2 t2 on (t2.id = > any(array_agg)) group by t1.col1; > > but I get this error: ERROR: column "array_agg" does not exist > > I tried aliasing array_agg(t1.id) without success. > > Thanks for any suggestions,
I can't really understand what you want to achieve, but maybe this is what you are looking for: test=*# select * from a; id | v ----+--- 1 | 1 2 | 1 3 | 1 4 | 1 5 | 2 6 | 2 (6 rows) test=*# select * from b; id ---- 1 3 (2 rows) test=*# select array_agg(a.id), v from a join b on (b.id in (select a.id from a)) group by a.v; array_agg | v -------------------+--- {1,2,3,4,1,2,3,4} | 1 {6,5,5,6} | 2 (2 rows) Question: you are 'pif' in the irc-channel? Regards, Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header) GnuPG: 0x31720C99, 1006 CCB4 A326 1D42 6431 2EB0 389D 1DC2 3172 0C99 -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql