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Re: [HACKERS] Rule plan size for views?

From: jwieck(at)debis(dot)com (Jan Wieck)
To: darrenk(at)insightdist(dot)com (Darren King)
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] Rule plan size for views?
Date: 1998-03-02 08:02:05
Message-ID: m0y9QAo-000BFRC@orion.SAPserv.Hamburg.dsh.de (view raw or flat)
Thread:
Lists: pgsql-hackers
> 
> > 
> > What is the rule size for views?
> > 
> > This seems to have changed in this beta; I have a view that worked in a 
> > previous beta but fails to create.  
> > "ERROR: DefineQueryRewrite: rule plan string too big."
> > 
> > I have about 33 column headings with a join of 5 tables.
> > 
> > I have the latest cvsup tree as of a few minutes ago.
> > Linux 2.0.30
> > pgcc compiler
> 
> The rule plan is stored as a tuple, hence for this release that limit
> is a little under 8k.
> 
> For 6.4, you will be able to use a bigger block size, therefore have
> bigger tuples and this should then work again.
> 
> Sounds like the plan internally grew (possible w/subselect stuff?!?) and
> has gone over that 8k limit.

    I think it must be due to the cleanups in the node-print and
    read funcs. They now output/read ALL fields in the nodes.

> 
> I know it's little consolation, but as soon as I can get the variable
> block size working (actually only breaks in the create_triggers regression
> test when sorting to disk), I could post it as a patch for 6.3 as well as
> put it into the 6.4 tree.
> 
> darrenk
> 
> 


Jan


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#======================================== jwieck(at)debis(dot)com (Jan Wieck) #


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