Richard Huxton schrieb: > Search the mailing-list archives for "custom aggregate concat" and > you'll quickly find an example of how to write your own custom aggregate > (like SUM()). > > Warning - I don't think you can guarantee the order of elements in the > aggregated sectors.
Thank you very much. This was the right hint where to search. For the order I'll try to find some possibilities to write a function, that does a sort on this ;) We'll see... -- GnuPG-PublicKey -> http://www.hobsons.de/pgp/kai_hessing.asc Wer Unrecht tut ist ungluecklicher als wer unrecht leidet. (Demokrit, um 460 v. Chr.) ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
