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pgsql: Add some notes about the basic mathematical laws that the system

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Add some notes about the basic mathematical laws that the system
Date: 2007-01-12 17:04:55
Message-ID: 20070112170455.45AE09FB3AF@postgresql.org (view raw or flat)
Thread:
Lists: pgsql-committers
Log Message:
-----------
Add some notes about the basic mathematical laws that the system presumes
hold true for operators in a btree operator family.  This is mostly to
clarify my own thinking about what the planner can assume for optimization
purposes.  (blowing dust off an old abstract-algebra textbook...)

Modified Files:
--------------
    pgsql/src/backend/access/nbtree:
        README (r1.16 -> r1.17)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/nbtree/README.diff?r1=1.16&r2=1.17)

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Next:From: Bruce MomjianDate: 2007-01-12 19:23:38
Subject: pgsql: Update ORDER BY UNION function/exprssion wording (again).
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