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Commit960f545

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Update bitmap index description:
< Such indexes could be more compact if there are only a few unique values.> Such indexes could be more compact if there are only a few distinct values.> Such indexes can also be compressed. Keeping such indexes updated can be> costly.
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‎doc/TODO

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@@ -6,7 +6,7 @@ TODO list for PostgreSQL
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Bracketed items "[]" have more detail.
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Current maintainer:Bruce Momjian (pgman@candle.pha.pa.us)
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Last updated:Mon Nov8 23:13:58 EST 2004
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Last updated:Tue Nov9 10:10:57 EST 2004
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The most recent version of this document can be viewed at the PostgreSQL web
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site, http://www.PostgreSQL.org.
@@ -261,7 +261,9 @@ Indexes
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* Allow the creation of on-disk bitmap indexes which can be quickly
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combined with other bitmap indexes
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Such indexes could be more compact if there are only a few unique values.
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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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* Allow use of indexes to search for NULLs
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