Remove some recursion in optimizer and clean up some code there.

Bruce Momjian <bruce@momjian.us>

Commit: 78a055a6593efb8e64ad2edac2c86b680c177ad2
Author: Bruce Momjian <bruce@momjian.us>
Date: 1997-12-21T05:18:48Z
Releases: 7.1.1
Remove some recursion in optimizer and clean up some code there.

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