Re: Excessive memory used for INSERT - Mailing list pgsql-performance

From Alessandro Ipe
Subject Re: Excessive memory used for INSERT
Date
Msg-id 2870224.f0CdzmR1Qa@snow.oma.be
Whole thread Raw
In response to Re: Excessive memory used for INSERT  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-performance

Hi,

 

 

I can send a full dump of my database (< 2MB) if it is OK for you.

 

 

Thanks,

 

 

A.

 

 

On Thursday 18 December 2014 12:05:45 Tom Lane wrote:

> Alessandro Ipe <Alessandro.Ipe@meteo.be> writes:

> > Hi,

> > I tried also with an upsert function

> > CREATE FUNCTION upsert_func(sql_insert text, sql_update text) RETURNS void

> >

> > LANGUAGE plpgsql

> > AS $$

> >

> > BEGIN

> > EXECUTE sql_update;

> > IF FOUND THEN

> >

> > RETURN;

> >

> > END IF;

> > BEGIN

> >

> > EXECUTE sql_insert;

> > EXCEPTION WHEN OTHERS THEN

> > EXECUTE sql_update;

> > END;

> >

> > RETURN;

> >

> > END;

> > $$;

> > with the same result on the memory used...

>

> If you want to provide a self-contained test case, possibly we could look

> into it, but these fragmentary bits of what you're doing don't really

> constitute an investigatable problem statement.

>

> I will note that EXCEPTION blocks aren't terribly cheap, so if you're

> reaching the "EXECUTE sql_insert" a lot of times that might have something

> to do with it.

>

> regards, tom lane

 

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