Re: non-recursive WITH clause support

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Gregory Stark <stark(at)enterprisedb(dot)com>
Cc: pgsql-patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: non-recursive WITH clause support
Date: 2007-05-02 11:05:39
Message-ID: 200705021105.l42B5dn01070@momjian.us
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Gregory Stark wrote:
>
> Here's an updated patch that fixes the bug I had. This is now functional basic
> non-recursive WITH clause support.
>
> http://community.enterprisedb.com/recursive/with-pg82stable-v2.patch.gz
>
> It's a pretty short simple patch as is; it just directly inlines any WITH
> clauses as if they had been written as subqueries. We'll have to do something
> much more clever to get recursive queries to work but for non-recursive
> queries that's sufficient.
>
> Example:
>
> postgres=# with a as (select 1 as x) select * from (select * from a) as x;
> x
> ---
> 1
> (1 row)
>
>
>
>
> --
> Gregory Stark
> EnterpriseDB http://www.enterprisedb.com
>
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>
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--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

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