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Add UPDATE entry for row reuse.
>> * Allow heap reuse of UPDATEd rows if old and new versions are on the> same heap page?>> This is possible for same-page updates because a single index row> can point to both old and new values.>http://archives.postgresql.org/pgsql-hackers/2006-06/msg01305.php1 parent50aa69a commitfc6a229
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