On Tue, Jan 06, 2009 at 11:13:59PM +0530, Gurjeet Singh wrote: > If we consider the second branch of UNION ALL of both the queries above, if > "select '' " yields a text column, then so should a "select * from (select > '')". The problem is ofcourse that "select ''" doesn't produce a text column in postgres. This generally works fine, except in the case of UNION where none of the branches provide the necessary type info. Have a nice day, -- Martijn van Oosterhout <kleptog@xxxxxxxxx> http://svana.org/kleptog/ > Please line up in a tree and maintain the heap invariant while > boarding. Thank you for flying nlogn airlines.
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