Expected behaviour of \d in regexp with exponent numbers ?

[Arnaud Lesauvage <arnaud.listes@xxxxxxxxx>]

Hi all,

I just came accross this trying to upgrade my server from 8.4.8 to 9.3.4 :

SELECT substring('²' FROM E'\\d');

8.4 : NULL
9.3 : "²"

Am I correct to expect NULL in this case ?
Thanks !

--
Arnaud


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