On 17/08/07, hubert depesz lubaczewski <depesz@xxxxxxxxxx> wrote: > On Fri, Aug 17, 2007 at 10:22:55PM +0800, Phoenix Kiula wrote: > > Wow, smartest advice of the day! Yes, a lot of our data in that column > > has dots and numbers (800,000 compared to 6 million), so I wanted to > > get only to the stuff that was pure alphabets, but just didn't think > > of how. > > what i really meant was: check how many record will actually be modified > - i.e. contain upper-case letters. > > the fact that some records contain only dots and digits is nice, but i > suspect that you also have a lot of record with only lower-case letters > in the field. or am i wrong? > You guessed it right. The query makes perfect sense. Only update those records that have uppercase, and therefore require updating! Many thanks. ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org/