Re: query plan with index having a btrim is different for strings of different length

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От Tom Lane
Тема Re: query plan with index having a btrim is different for strings of different length
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Msg-id 6449.1228939494@sss.pgh.pa.us
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Ответ на Re: query plan with index having a btrim is different for strings of different length  (Richard Yen <dba@richyen.com>)
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BTW, if your queries typically constrain both lastname and firstname,
it'd likely be worthwhile to make a 2-column index on
    lower(btrim(x_lastname)), lower(btrim(x_firstname))

            regards, tom lane

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