From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
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To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
Cc: | Necati Batur <necatibatur(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Gsoc XQuery |
Date: | 2010-04-09 20:55:13 |
Message-ID: | m2h603c8f071004091355t93665026t7209c7a1bc127e80@mail.gmail.com |
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Lists: | pgsql-hackers |
On Fri, Apr 9, 2010 at 4:37 PM, Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:
> (Personally I wish some SOC student would do LATERAL. It would be useful and
> is a feature of about the right size, I think).
Actually, I think that requires two rounds of significant executor
refactoring. This is round two:
http://archives.postgresql.org/pgsql-hackers/2009-10/msg00994.php
Round one, which Tom said he was already planning to do for 9.1, is to
eliminate the hack by which "outer tuples" are passed down into
nest-loops-with-inner-indexscan. Once those two things are done the
remaining work might be suitable for a GSoC project.
...Robert
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