Re: [GENERAL] Concatenate performance question

2006-12-06 Thread Michael Guyver
On 03/12/06, Tom Lane <[EMAIL PROTECTED]> wrote: "Michael Guyver" <[EMAIL PROTECTED]> writes: > ... Running the array_append version is faster by at least one order of > magnitude in these examples. Really? I see only about a 50% advantage (155 msec vs 105 msec) i

Re: [GENERAL] Concatenate performance question

2006-12-03 Thread Michael Guyver
quires the evaluation of five calls, whereas the former can do it in one go. However, my original question still stands - is there another way of doing this? Is it possible to write to a bytea or blob or stream and avoid having to do any concatenation at all? Cheers Michael On 29/11/06, Micha

[GENERAL] Concatenate performance question

2006-11-29 Thread Michael Guyver
Hi there, I've got a rather large PL/pgSQL function which returns a varchar (though it could be text, char or blob, I'm not fussy) containing JSON information (where JSON is Javascript Object Notation). The middle tier of the app does pretty much sweet FA except pass this straight back to the cli