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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/access/heap/README.HOT
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$PostgreSQL: pgsql/src/backend/access/heap/README.HOT,v 1.2 2007/09/21 21:25:42 tgl Exp $
$PostgreSQL: pgsql/src/backend/access/heap/README.HOT,v 1.3 2008/03/21 13:23:27 momjian Exp $
Heap Only Tuples (HOT)
Introduction
------------
Heap Only Tuples (HOT)
======================
The Heap Only Tuple (HOT) feature eliminates redundant index entries and
allows the re-use of space taken by DELETEd or obsoleted UPDATEd tuples