Re: BUG? Regular expression matching of optional character group at beginning of RE

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От Tom Lane
Тема Re: BUG? Regular expression matching of optional character group at beginning of RE
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Msg-id 23411.1341677363@sss.pgh.pa.us
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Ответ на BUG? Regular expression matching of optional character group at beginning of RE  (Viktor Rosenfeld <listuser36@googlemail.com>)
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Viktor Rosenfeld <listuser36@googlemail.com> writes:
> I've noticed that regular expressions which are anchored at the
> beginning of the text but have an optional part at the beginning
> (e.g. '^(ge)?kommen$') are not evaluated correctly if there is an
> index on the column.

Ugh.  Yeah, that's a bug, and it looks a bit messy to fix ...

            regards, tom lane

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