Re: non-recursive WITH clause support - Mailing list pgsql-patches

From Bruce Momjian
Subject Re: non-recursive WITH clause support
Date
Msg-id 200705021105.l42B5dn01070@momjian.us
Whole thread Raw
In response to non-recursive WITH clause support  (Gregory Stark <stark@enterprisedb.com>)
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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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  Bruce Momjian  <bruce@momjian.us>          http://momjian.us
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