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From: "Josh Berkus" <josh@agliodbs.com>
Subject: Re: Proposal of hierarchical queries, a la Oracle
To: Evgen Potemkin <evgent@ns.terminal.ru>,
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Evgren,

> I want to propose the patch for adding the hierarchical queries
> posibility.
> It allows to construct queries a la Oracle for ex:
> SELECT a,b FROM t CONNECT BY a PRIOR b START WITH cond;

You'll be thrilled to know that this has already been implemented in
PostgreSQL 7.3, as a /contrib module, by Joe Conway.

Download 7.3b5 now if you can't wait; Joe would like more people to
test his module, anyway.

-Josh Berkus