Re: Inconsistency between TO_CHAR() and TO_NUMBER()

Tom Lane wrote on 10.05.2013 17:49:
> I looked into this, and find that the reason it misbehaves is that
> NUM_numpart_from_char() will treat a '.' as being a decimal point
> *without any regard to locale considerations*. So even if we have
> a locale-dependent format string and a locale that says '.' is a
> thousands separator, it does the wrong thing.
>
> It's a bit surprising nobody's complained of this before.
>
> I propose the attached patch. I'm slightly worried though about whether
> this might break any existing applications that are (incorrectly)
> depending on a D format specifier being able to match '.' regardless of
> locale. Perhaps we should only apply this to HEAD and not back-patch?

The manual claims that 'D' is locale dependent (whereas '.' is not), so
_theoretically_ a back patch would make sense I guess.

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