On Mon, May 01, 2006 at 01:45:35PM -0500, Wes wrote: > On 5/1/06 12:47 PM, "Martijn van Oosterhout" <kleptog@xxxxxxxxx> wrote: > > > Check the documentation, but if you declare a index with (for example) > > text_pettern_ops, then LIKE will work even if the rest of your DB is > > UTF-8. > > My understanding of using operator classes is that I'd have to create two > indexes for each column - one with and one without the operator class. That > is also what was indicated in the original thread. Defining multiple > indexes on a given column isn't feasible, due to the database size (100 > million rows per day). Oh right. If you want ordinary <,=,> to work for utf-8 and be indexed, you need to have both. OTOH, if you're happy with text_pattern_ops for ordinary lookups, you can use ~<~, ~=~, ~>~ to use the that index for matches.. Have a nice day, -- Martijn van Oosterhout <kleptog@xxxxxxxxx> http://svana.org/kleptog/ > From each according to his ability. To each according to his ability to litigate.
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