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体验新版 GitCode,发现更多精彩内容 >>
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e5f2155a
编写于
6月 06, 2003
作者:
B
Bruce Momjian
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电子邮件补丁
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Update FAQ from Ian Barwick.
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doc/FAQ
浏览文件 @
e5f2155a
Frequently Asked Questions (FAQ) for PostgreSQL
Last updated: Fri
May 30 22:24:56
EDT 2003
Last updated: Fri
Jun 6 18:20:23
EDT 2003
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
...
...
@@ -252,7 +252,7 @@
1.7) What is the latest release?
The latest release of PostgreSQL is version 7.3.
2
.
The latest release of PostgreSQL is version 7.3.
3
.
We plan to have major releases every four months.
...
...
@@ -265,8 +265,9 @@
There are two PostgreSQL books available online at
http://www.PostgreSQL.org/docs/awbook.html and
http://www.commandprompt.com/ppbook/. There is a list of PostgreSQL
books available for purchase at http://www.ca.PostgreSQL.org/books/.
There is also a collection of PostgreSQL technical articles at
books available for purchase at
http://techdocs.PostgreSQL.org/techdocs/bookreviews.php. There is also
a collection of PostgreSQL technical articles at
http://techdocs.PostgreSQL.org/.
psql has some nice \d commands to show information about types,
...
...
@@ -671,7 +672,7 @@
BEGIN;
ALTER TABLE tab ADD COLUMN new_col new_data_type;
UPDATE tab SET new_col = CAST(old_col AS new_data_type);
ALTER TABLE DROP COLUMN old_col;
ALTER TABLE
tab
DROP COLUMN old_col;
COMMIT;
You might then want to do VACUUM FULL tab to reclaim the disk space
...
...
doc/src/FAQ/FAQ.html
浏览文件 @
e5f2155a
...
...
@@ -10,7 +10,7 @@
alink=
"#0000ff"
>
<H1>
Frequently Asked Questions (FAQ) for PostgreSQL
</H1>
<P>
Last updated: Fri
May 30 22:24:56
EDT 2003
</P>
<P>
Last updated: Fri
Jun 6 18:20:23
EDT 2003
</P>
<P>
Current maintainer: Bruce Momjian (
<A
href=
"mailto:pgman@candle.pha.pa.us"
>
pgman@candle.pha.pa.us
</A>
)
<BR>
...
...
@@ -323,7 +323,7 @@
<H4><A
name=
"1.7"
>
1.7
</A>
) What is the latest release?
</H4>
<P>
The latest release of PostgreSQL is version 7.3.
2
.
</P>
<P>
The latest release of PostgreSQL is version 7.3.
3
.
</P>
<P>
We plan to have major releases every four months.
</P>
...
...
@@ -340,7 +340,7 @@
"http://www.commandprompt.com/ppbook/"
>
http://www.commandprompt.com/ppbook/
</A>
.
There is a list of PostgreSQL books available for purchase at
<A
href=
"http://
www.ca.PostgreSQL.org/books/"
>
http://www.ca.PostgreSQL.org/books/
</A>
.
"http://
techdocs.postgresql.org/techdocs/bookreviews.php"
>
http://techdocs.PostgreSQL.org/techdocs/bookreviews.php
</A>
.
There is also a collection of PostgreSQL technical articles at
<A
href=
"http://techdocs.PostgreSQL.org/"
>
http://techdocs.PostgreSQL.org/
</A>
.
</P>
...
...
@@ -505,7 +505,7 @@
<P>
Also, if you have a success story about PostgreSQL, please submit
it to our advocacy site at
<a
href=
"http://advocacy.postgresql.org"
>
http://advocacy.postgresql.org
</a>
.
http://advocacy.postgresql.org
</a>
.
</P>
<H2
align=
"center"
>
User Client Questions
</H2>
...
...
@@ -612,7 +612,7 @@
<I>
postmaster
</I>
. For most systems, with default numbers of
buffers and processes, you need a minimum of ~1 MB. See the
<A
href=
"http://www.PostgreSQL.org/docs/view.php?version=current&
idoc=1&
file=kernel-resources.html"
>
PostgreSQL
"http://www.PostgreSQL.org/docs/view.php?version=current&
amp;idoc=1&
file=kernel-resources.html"
>
PostgreSQL
Administrator's Guide
</A>
for more detailed information about
shared memory and semaphores.
</P>
...
...
@@ -856,7 +856,7 @@
BEGIN;
ALTER TABLE tab ADD COLUMN new_col
<i>
new_data_type
</i>
;
UPDATE tab SET new_col = CAST(old_col AS
<i>
new_data_type
</i>
);
ALTER TABLE DROP COLUMN old_col;
ALTER TABLE
tab
DROP COLUMN old_col;
COMMIT;
</PRE>
<P>
You might then want to do
<I>
VACUUM FULL tab
</I>
to reclaim the
...
...
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