Optimizer cleanup.

Bruce Momjian <bruce@momjian.us>

Commit: 6e2edaf4b8efa1590555dad1f45fe1df4a19ca9a
Author: Bruce Momjian <bruce@momjian.us>
Date: 1999-02-05T19:59:31Z
Releases: 7.1.1
Optimizer cleanup.

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