Lele Gaifax wrote: > Alvaro Herrera <alvherre@xxxxxxxxxxxxxxx> writes: > > > So 10% of your rows in the master_l10n table start with "quattro"? > > That's pretty odd, isn't it? How did you manufacture these data? > > Well, not a real scenario for sure, but definitely not odd: I just needed an > "extremely" big dataset to test out several different strategies, both on > table layout and indexes. The tables are populated by mechanically translating > the integer primary key into the corresponding "in words" string (1 -> "one")... I imagined it would be something like that. It's not the most useful set of test data, precisely because it doesn't accurately reflect what you're going to have in practice. I suggest you enter some actual text, even if it's just text from Don Camillo or whatever. > > How often are you going to look for translated text without specifying a > > language? > > Never. The most frequently used criteria is «LIKE '%word%'» in the context of > a user session, and thus with a "preferred language". Be very careful with a % at the left. The index is not going to work at all there. It is not the same as looking for stuff without a % at the left. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general