Re: Getting my Database name in a C Extension

On 10/2/2014 8:11 AM, Cedric Berger wrote:
> I'm writing an extention (FDW), and I need, in my C code, the name of
> my database ("contrib_regression_test" for example), and I've two
> questions:
>
> 1) What is the easiest way to get that directly in C?
>
> 2) Is there a way to get this information in the SQL extension
> installation/update scripts (like the @/extschema/@ substitution)?

you could SELECT CURRENT_CATALOG; using the SPI_ functions from your C,
or directly in your SQL extension script... this returns the database
name (the name is from the sql standard). see
http://www.postgresql.org/docs/current/static/functions-info.html for
more info functions like this available in SQL.

--
john r pierce 37N 122W
somewhere on the middle of the left coast