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Add URL for bitmap AM:
> http://archives.postgresql.org/pgsql-patches/2005-07/msg00512.php
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doc/TODO
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doc/TODO
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PostgreSQL TODO List
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====================
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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Last updated: Sat Jun 10 19:33:17 EDT 2006
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Last updated: Mon Jun 12 12:14:51 EDT 2006
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The most recent version of this document can be viewed at
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http://www.postgresql.org/docs/faqs.TODO.html.
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@ -905,6 +905,7 @@ Indexes
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Such indexes could be more compact if there are only a few distinct values.
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Such indexes can also be compressed. Keeping such indexes updated can be
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costly.
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http://archives.postgresql.org/pgsql-patches/2005-07/msg00512.php
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* Allow use of indexes to search for NULLs
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