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22 Frequently Asked Questions (FAQ) for PostgreSQL
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4- Last updated: Mon Jun 24 23:35:08 EDT 2002
4+ Last updated: Thu Jul 4 15:25:57 EDT 2002
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66 Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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707707 Indexes do not require as much overhead, but do contain the data that
708708 is being indexed, so they can be large also.
709709
710+ NULLs are stored in bitmaps, so they use very little space.
711+
710712 4.7) How do I find out what tables, indexes, databases, and users are
711713 defined?
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Original file line number Diff line number Diff line change 1414 alink ="#0000ff ">
1515 < H1 > Frequently Asked Questions (FAQ) for PostgreSQL</ H1 >
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17- < P > Last updated: Mon Jun 24 23:35:08 EDT 2002</ P >
17+ < P > Last updated: Thu Jul 4 15:25:57 EDT 2002</ P >
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1919 < P > Current maintainer: Bruce Momjian (< A href =
2020 "mailto:pgman@candle.pha.pa.us "> pgman@candle.pha.pa.us</ A > )< BR >
@@ -909,6 +909,9 @@ <H4><A name="4.6">4.6</A>) How much database disk space is required
909909 < P > Indexes do not require as much overhead, but do contain the data
910910 that is being indexed, so they can be large also.</ P >
911911
912+ < P > < SMALL > NULL</ SMALL > s are stored in bitmaps, so they
913+ use very little space.</ P >
914+
912915 < H4 > < A name ="4.7 "> 4.7</ A > ) How do I find out what tables, indexes,
913916 databases, and users are defined?</ H4 >
914917
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