Non-capturing expressions

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От Thom Brown
Тема Non-capturing expressions
Дата
Msg-id CAA-aLv5jhbhqO7cAVoLei0cSMF15t9+GJGF9k1GB8dyzVEFyAA@mail.gmail.com
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Hi all,

It must be that I haven't had enough caffeine today, but I can't figure out why the following expression captures the non-capturing part of the text:

# SELECT regexp_matches('postgres','(?:g)r');
 regexp_matches 
----------------
 {gr}
(1 row)

I'm expecting '{r}' in the output as I thought this would use ARE mode by default.

Thom

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