Re: [PATCH] Re: Adding XMLEXISTS to the grammar

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: Mike Fowler <mike(at)mlfowler(dot)com>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [PATCH] Re: Adding XMLEXISTS to the grammar
Date: 2010-08-05 04:23:22
Message-ID: 1280982202.16049.1.camel@vanquo.pezone.net
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On lör, 2010-07-24 at 20:32 +0100, Mike Fowler wrote:
> Attached is the revised version of the patch addressing all the
> issues
> raised in the review, except for the use of AexprConst and c_expr.
> With
> my limited knowledge of bison I've failed to resolve the shift/reduce
> errors that are introduced by using a_expr. I'm open to suggestions
> as
> my desk is getting annoyed with me beating it in frustration!

It's committed now. I ended up refactoring this a little bit so that
xpath() and xmlexists() can share more of the code. Also, I relaxed the
grammar a bit for better compatibility with DB2, Oracle, and Derby.

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