On Mon, Feb 13, 2006 at 03:33:34PM +0300, Ilja Golshtein wrote: > Hello! > > Is there any way to use an index to pick up text field > start from a substring? > I need to ignore case of characters and encoding I use is UTF-8. > > I am aware of text_pattern_ops and stuff, though > FAQ says ILIKE does not use indexes.
You at the very least would need a text_pattern_ops index on lower(colname). At that, I'm not sure whether it would work or whether you need to rephrase your query as: lower(a) like lower(b) Hope this helps, -- Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/ > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a > tool for doing 5% of the work and then sitting around waiting for someone > else to do the other 95% so you can sue them.
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