Armin Resch wrote:
> Not sure this is the right list to vent about this but here you go:
>
> I) select regexp_replace('BEFORE.AFTER','(.*)\..*','\1','g') "Substring"
> II) select regexp_replace('BEFORE.AFTER','(.*)\\..*','\\1','g') "Substring"
>
> Executing (II) against pg 8.4.4 or 9.0.4 yields 'BEFORE', but in order for
> 9.1.7 to yield the same one
> has to execute (I) .. bummer
To be immune against different settings of standard_conforming_strings,
use the extended string literal syntax:
select regexp_replace('BEFORE.AFTER',E'(.*)\\..*',E'\\1','g') "Substring";
That will work in all versions.
Yours,
Laurenz Albe
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