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More README src cleanups.

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Bruce Momjian
2008-03-21 13:23:29 +00:00
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src/backend/executor/README
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$PostgreSQL: pgsql/src/backend/executor/README,v 1.6 2008/03/20 17:55:14 momjian Exp $
$PostgreSQL: pgsql/src/backend/executor/README,v 1.7 2008/03/21 13:23:28 momjian Exp $
The Postgres Executor
---------------------
=====================
The executor processes a tree of "plan nodes". The plan tree is essentially
a demand-pull pipeline of tuple processing operations. Each node, when