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From: Tom Lane <[email protected]>
To: Michael Paquier <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: Niyas Sait <[email protected]>
Cc: Thomas Munro <[email protected]>
Cc: Julien Rouhaud <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: [PATCH] Add native windows on arm64 support
Date: Wed, 31 Aug 2022 13:33:53 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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Michael Paquier <[email protected]> writes:
> At the end, I'd like to think that it would be wiser to just remove
> entirely the test for node() or reduce the contents of the string to
> be able to strictly control the output order (say a simple
> '<e>pre<![CDATA[&ent1]]>post</e>' would do the trick).  I cannot think
> about a better idea now.  Note that removing the test case where we
> have node() has no impact on the coverage of xml.c.

Yeah, I confirm that: local code-coverage testing shows no change
in the number of lines reached in xml.c when I remove that column:

-SELECT * FROM XMLTABLE('*' PASSING '<e>pre<!--c1--><?pi arg?><![CDATA[&ent1]]><n2>&amp;deep</n2>post</e>' COLUMNS x xml PATH 'node()', y xml PATH '/');
+SELECT * FROM XMLTABLE('*' PASSING '<e>pre<!--c1--><?pi arg?><![CDATA[&ent1]]><n2>&amp;deep</n2>post</e>' COLUMNS y xml PATH '/');

Dropping the query altogether does result in a reduction in the
number of lines hit.

I did not check the other XMLTABLE infrastructure, so what probably
is best to do is keep the two output columns but change 'node()'
to something with a more stable result; any preferences?

			regards, tom lane

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