Tatsuo Ishii <[EMAIL PROTECTED]> writes: >> I'd feel more confident if the measurements were done using operators >> repeated enough times to yield multiple-second runtimes.
> Any idea to do that? Maybe something like this: declare a plpgsql function that takes two text parameters and has a body like for (i = 0 to a million) boolvar := $1 like $2; Then call it with strings of different lengths and see how the runtime varies. You need to apply the LIKE to function parameters, else the system will probably collapse the LIKE operation to a constant... regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly