Unmark 'hashable' operators that can't really be used for

Tom Lane <tgl@sss.pgh.pa.us>

Commit: 4e21023fd492994df02d4caa740cc30df53f86c6
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 1999-04-07T04:21:11Z
Releases: 7.1.1
Unmark 'hashable' operators that can't really be used for
hashjoins.  Extend opr_sanity regress test to help detect similar mistakes.

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