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From: Josh Berkus on 5 Aug 2010 13:58
On 8/5/10 6:58 AM, Peter Eisentraut wrote:
> pg_stat_user_functions has an inconsistent notion of what "user" is.
> Whereas the other pg_stat_user_* views filter out non-user objects by
> schema, pg_stat_user_functions checks for language "internal", which
> does not successfully exclude builtin functions of language SQL. Is
> there a reason for this inconsistency?

Undoubtedly because function data collection already filters on function
language, per the GUC setting. Not that that is a *good* reason, but I
can see how we arrived a the current functionality.

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From: David Fetter on 5 Aug 2010 10:13
On Thu, Aug 05, 2010 at 04:58:32PM +0300, Peter Eisentraut wrote:
> pg_stat_user_functions has an inconsistent notion of what "user" is.
> Whereas the other pg_stat_user_* views filter out non-user objects
> by schema, pg_stat_user_functions checks for language "internal",
> which does not successfully exclude builtin functions of language
> SQL. Is there a reason for this inconsistency?

If I had to hazard a guess, it would be that the functionality was
written over time by different people, not all of whom were using the
same criteria for coherence.

Cheers,
David.
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