On Sat, Sep 27, 2008 at 12:46:31AM +0000, Anatoli Lau wrote:
> select regexp_matches('/a/b[534]', E'(.*)\[([0-9]*)\]');
> always gives the error but
> select regexp_matches('/a/b{534}', E'(.*)\{([0-9]*)\}');
> works good, the problems comes up only when '[' used
it would be good to show what kind of error it shows. i can only guess
that you are running it through psql, and the error you get is:
ERROR: invalid regular expression: parentheses () not balanced
in such case, change "\[" to "\\[":
# select regexp_matches('/a/b[534]', E'(.*)\\[([0-9]*)\\]');
regexp_matches
----------------
{/a/b,534}
(1 row)
depesz
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