Op 2 aug 2009 om 01:01 heeft Stefan Manegold <[email protected]> het volgende geschreven:\
> On Sat, Aug 01, 2009 at 07:13:18PM +0200, Stefan de Konink wrote: >> On Sat, 1 Aug 2009, Stefan Manegold wrote: >> >>> Once / in case that turns[C out to be(come) a performance >>> bottleneck, we could >>> probably add a BAT(u)iselect (for string-tailed BATs, only) that >>> is based on >>> strcasecmp(3) with not too much efford ... >> >> Is that UTF8 compatible? > > as much or little as srcmp(3), I suppose, which we use for normal > BAT(u)select, and hence for non-LIKE string predicates (i.e., normal > equality and inequality) > Ok, the alternative I suggested to Fabian was to use our lookup table if a char doesnt matches. The minor detail there is endianess. PCRE might be faster anyway, strcasencmp the n is for only one char; trivial to test I guess. > Stefan > >> >> Stefan >> >> >> --- >> --- >> --- >> --------------------------------------------------------------------- >> Let Crystal Reports handle the reporting - Free Crystal Reports >> 2008 30-Day >> trial. Simplify your report design, integration and deployment - >> and focus on >> what you do best, core application coding. Discover what's new with >> Crystal Reports now. http://p.sf.net/sfu/bobj-july >> _______________________________________________ >> Monetdb-developers mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/monetdb-developers >> >> > > -- > | Dr. Stefan Manegold | mailto:[email protected] | > | CWI, P.O.Box 94079 | http://www.cwi.nl/~manegold/ | > | 1090 GB Amsterdam | Tel.: +31 (20) 592-4212 | > | The Netherlands | Fax : +31 (20) 592-4312 | ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Monetdb-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/monetdb-developers
