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Update null storage description.

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Bruce Momjian
2004-01-25 02:28:43 +00:00
parent 8303a3d1ea
commit afe7b7b60e
2 changed files with 4 additions and 4 deletions
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doc/FAQ
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Frequently Asked Questions (FAQ) for PostgreSQL Frequently Asked Questions (FAQ) for PostgreSQL
Last updated: Fri Jan 23 09:41:43 EST 2004 Last updated: Sat Jan 24 21:28:41 EST 2004
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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Indexes do not require as much overhead, but do contain the data that Indexes do not require as much overhead, but do contain the data that
is being indexed, so they can be large also. is being indexed, so they can be large also.
NULLs are stored in bitmaps, so they use very little space. NULLs are stored as bitmaps, so they use very little space.
4.7) How do I find out what tables, indexes, databases, and users are 4.7) How do I find out what tables, indexes, databases, and users are
defined? defined?

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doc/src/FAQ/FAQ.html
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alink="#0000ff"> alink="#0000ff">
<H1>Frequently Asked Questions (FAQ) for PostgreSQL</H1> <H1>Frequently Asked Questions (FAQ) for PostgreSQL</H1>
<P>Last updated: Fri Jan 23 09:41:43 EST 2004</P> <P>Last updated: Sat Jan 24 21:28:41 EST 2004</P>
<P>Current maintainer: Bruce Momjian (<A href= <P>Current maintainer: Bruce Momjian (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR> "mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
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<P>Indexes do not require as much overhead, but do contain the data <P>Indexes do not require as much overhead, but do contain the data
that is being indexed, so they can be large also.</P> that is being indexed, so they can be large also.</P>
<P><SMALL>NULL</SMALL>s are stored in bitmaps, so they <P><SMALL>NULL</SMALL>s are stored as bitmaps, so they
use very little space.</P> use very little space.</P>
<H4><A name="4.7">4.7</A>) How do I find out what tables, indexes, <H4><A name="4.7">4.7</A>) How do I find out what tables, indexes,