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Re: BUG #3645: regular expression back references seem broken - Mailing list pgsql-bugs

From Tom Lane
Subject Re: BUG #3645: regular expression back references seem broken
Date
Msg-id 7405.1191252894@sss.pgh.pa.us
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In response to BUG #3645: regular expression back references seem broken  ("Eric Haszlakiewicz" <erh+pgsql@swapsimple.com>)
Responses Re: BUG #3645: regular expression back references seem broken
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"Eric Haszlakiewicz" <erh+pgsql@swapsimple.com> writes:
> I would expect this to return false:

> template1=# select 'xyz' ~ E'^(.)\\1*$';
>  ?column?
> ----------
>  t
> (1 row)

Seems to be a bug in the Tcl regexp library we use.  It's already
reported upstream:
https://sourceforge.net/tracker/index.php?func=detail&aid=1115587&group_id=10894&atid=110894

            regards, tom lane

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