Search Postgresql Archives

Re: Tuning queries inside a function

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Alvaro Herrera <alvherre@xxxxxxxxxxxxx> writes:
> On Fri, Apr 29, 2005 at 12:32:26PM -0500, Mike Nolan wrote:
>> Any ideas on how to tune a user function?

> Maybe you could return a refcursor pointing to the EXPLAIN ANALYZE of
> the query inside the function.

The raw materials exist to do this: if you know which elements of a
query will be replaced by plpgsql variables, you can duplicate the
results via

	PREPARE foo(...) AS ...
	EXPLAIN EXECUTE foo(...)

Certainly there is a lot more that we can and must do about making
it easier to debug and tune plpgsql functions.  But you can fix 'em
with a little determination even now...

			regards, tom lane

---------------------------(end of broadcast)---------------------------
TIP 2: you can get off all lists at once with the unregister command
    (send "unregister YourEmailAddressHere" to majordomo@xxxxxxxxxxxxxx)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux