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Re: parsenodes vs. primnodes

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: parsenodes vs. primnodes
Date: 2007-01-31 00:10:28
Message-ID: 13579.1170202228@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> If something from primnodes.h (XmlExpr) needs something from 
> parsenodes.h (TypeName), should I just move the former to the latter, 
> or is there some major semantic dividing line between the two?  Or 
> maybe TypeName should really be a primnode?

Anything in primnodes should never need a TypeName.  Post-parse-analysis
representation of type info is as a pg_type Oid.  If you think you need
something else, let's have a discussion about why.  (Perhaps you need to
split XmlExpr into two different node types, one for raw grammar output
and one for parse-analysis output?)

			regards, tom lane

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