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Re: SQL to get WORKING from NODES

From: Greg Stein <gstein_at_gmail.com>
Date: Fri, 24 Sep 2010 10:32:53 -0400

On Fri, Sep 24, 2010 at 10:26, Philip Martin <philip.martin_at_wandisco.com> wrote:
> Greg Stein <gstein_at_gmail.com> writes:
>> Step back and look at that code.
>> The gather_children() got a bit more complicated because I was trying
>> to get the list of children from BASE_NODE and WORKING_NODE, and union
>> those together (or skip the union altogether in certain cases). With
>> NODES, it becomes one simple query:
>> SELECT DISTINCT local_relpath FROM nodes
>> WHERE wc_id = ?1 AND parent_relpath = ?2;
>> Done.
>> Pass that query to single_table_children() and return.
>> count_children, add_children_to_hash, and union_children can all be
>> eliminated with SVN_WC__NODES_ONLY.
> Yes, but in the short term NODES is going to look like BASE/WORKING.

That's fine, but not for gather_children() when !base_only. By
definition, it is blending BASE and WORKING children, and that is
exactly what NODES does for you already.


Received on 2010-09-24 16:33:31 CEST

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