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

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.

I have committed fixes for this.  Thanks for the report!

            regards, tom lane