Re: Replacing characters in a string

2010/9/14 Luís de Sousa <luis(dot)a(dot)de(dot)sousa(at)gmail(dot)com>:
>> SELECT regexp_replace('xaxx', 'x', 'e');
>  regexp_replace
> ----------------
>  eaxx
> (1 row)
>
> But the result I'd need is 'eaee'. How can I do it?

Just specify 'g' as the flags parameter (the 4th one). It means 'globally'.

SELECT regexp_replace('xaxx', 'x', 'e', 'g');

There are more of this flags described here:
http://www.postgresql.org/docs/8.4/interactive/functions-matching.html#POSIX-EMBEDDED-OPTIONS-TABLE

p.s. The question is for hackers - BTW I did not find 'g' in this
table, is it a docs bug?

>
> Thanks,
>
> Luís
>
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