Re: PL/C functions

One final note on this topic, (for me), if I write a C function that changes one of the LOCALES:

1/ Will it change the LOCALE at all?
2/ Does it change it for the whole program, affecting other, asynchronous
execution within any of the modules of the dbase?

Joe Conway wrote:

> Tom Lane wrote:
>
>> 1. There is no provision for a single pg_proc entry to have a variable
>> number of arguments.
>>
>> 2. You can make multiple pg_proc entries referencing the same C
>> function. The C function can find out how many arguments it was
>> actually passed (use PG_NARGS()).
>>
>> So you could make several different pg_proc entries and get the desired
>> effect, at some tedium.
>>
>> Joe Conway has posted a few examples using this approach, IIRC.
>>
>
> See contrib/dblink in 7.4beta -- there are several functions using this
> method, e.g. dblink_connect().
>
> Joe
>
>
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