From: Bruce Momjian
Date: Tue, 23 Jan 2001 01:00:55 +0000 (+0000)
Subject: Update FAQ.
X-Git-Tag: REL7_1~721
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c0bb21b3693cc0eb99054b639837e0c97ef5502d;p=postgresql
Update FAQ.
---
diff --git a/doc/FAQ b/doc/FAQ
index 6578a81103..0f754fe477 100644
--- a/doc/FAQ
+++ b/doc/FAQ
@@ -32,7 +32,7 @@
User Client Questions
2.1) Are there ODBC drivers for PostgreSQL?
- 2.2) What tools are available for hooking PostgreSQL to Web pages?
+ 2.2) What tools are available for use PostgreSQL with Web pages?
2.3) Does PostgreSQL have a graphical user interface? A report
generator? An embedded query language interface?
2.4) What languages are available to communicate with PostgreSQL?
@@ -50,11 +50,10 @@
3.5) How do I prevent other hosts from accessing my PostgreSQL
database?
3.6) Why can't I connect to my database from another machine?
- 3.7) All my servers crash under concurrent table access. Why?
- 3.8) How do I tune the database engine for better performance?
- 3.9) What debugging features are available?
- 3.10) I get "Sorry, too many clients" when trying to connect. Why?
- 3.11) What are the pg_sorttempNNN.NN files in my database directory?
+ 3.7) How do I tune the database engine for better performance?
+ 3.8) What debugging features are available?
+ 3.9) I get "Sorry, too many clients" when trying to connect. Why?
+ 3.10) What are the pg_sorttempNNN.NN files in my database directory?
Operational Questions
@@ -197,9 +196,6 @@
1.6) Where can I get support?
- There is no support for PostgreSQL from the University of California,
- Berkeley. It is maintained through volunteer effort.
-
The main mailing list is: pgsql-general@PostgreSQL.org. It is
available for discussion of matters pertaining to PostgreSQL. To
subscribe, send mail with the following lines in the body (not the
@@ -236,7 +232,7 @@
There is also an IRC channel on EFNet, channel #PostgreSQL. I use the
unix command irc -c '#PostgreSQL' "$USER" irc.phoenix.net.
- A list of commercial PostgreSQL support is available at
+ A list of commercial support companies is available at
http://www.postgresql.org/users-lounge/commercial-support.html.
1.7) What is the latest release?
@@ -385,7 +381,7 @@
See also the ODBC chapter of the Programmer's Guide.
- 2.2) What tools are available for hooking PostgreSQL to Web pages?
+ 2.2) What tools are available for using PostgreSQL with Web pages?
A nice introduction to Database-backed Web pages can be seen at:
http://www.webtools.com
@@ -469,6 +465,9 @@
authentication by modifying the file $PGDATA/pg_hba.conf accordingly.
This will allow TCP/IP connections.
+ Inoperative semaphores can also cause crashes during heavy database
+ access.
+
3.6) Why can't I connect to my database from another machine?
The default configuration allows only unix domain socket connections
@@ -476,12 +475,7 @@
postmaster has been started with the -i option, and add an appropriate
host entry to the file pgsql/data/pg_hba.conf.
- 3.7) All my servers crash under concurrent table access. Why?
-
- This problem can be caused by a kernel that is not configured to
- support semaphores.
-
- 3.8) How do I tune the database engine for better performance?
+ 3.7) How do I tune the database engine for better performance?
Certainly, indices can speed up queries. The EXPLAIN command allows
you to see how PostgreSQL is interpreting your query, and which
@@ -512,7 +506,7 @@
You can also use the CLUSTER command to group data in tables to match
an index. See the CLUSTER manual page for more details.
- 3.9) What debugging features are available?
+ 3.8) What debugging features are available?
PostgreSQL has several features that report status information that
can be valuable for debugging purposes.
@@ -559,7 +553,7 @@
pgsql/data/base/dbname directory. The client profile file will be put
in the client's current directory.
- 3.10) I get 'Sorry, too many clients' when trying to connect. Why?
+ 3.9) I get 'Sorry, too many clients' when trying to connect. Why?
You need to increase the postmaster's limit on how many concurrent
backend processes it can start.
@@ -587,7 +581,7 @@
was 64, and changing it required a rebuild after altering the
MaxBackendId constant in include/storage/sinvaladt.h.
- 3.11) What are the pg_sorttempNNN.NN files in my database directory?
+ 3.10) What are the pg_sorttempNNN.NN files in my database directory?
They are temporary files generated by the query executor. For example,
if a sort needs to be done to satisfy an ORDER BY, and the sort
diff --git a/doc/src/FAQ/FAQ.html b/doc/src/FAQ/FAQ.html
index 4cd94ab4c4..477ca24a3c 100644
--- a/doc/src/FAQ/FAQ.html
+++ b/doc/src/FAQ/FAQ.html
@@ -53,8 +53,8 @@
2.1) Are there ODBC drivers for
PostgreSQL?
- 2.2) What tools are available for hooking
- PostgreSQL to Web pages?
+ 2.2) What tools are available for use PostgreSQL
+ with Web pages?
2.3) Does PostgreSQL have a graphical user
interface? A report generator? An embedded query language
interface?
@@ -77,14 +77,12 @@
accessing my PostgreSQL database?
3.6) Why can't I connect to my database from
another machine?
- 3.7) All my servers crash under concurrent
- table access. Why?
- 3.8) How do I tune the database engine for
+ 3.7) How do I tune the database engine for
better performance?
- 3.9) What debugging features are available?
- 3.10) I get "Sorry, too many clients"
+ 3.8) What debugging features are available?
+ 3.9) I get "Sorry, too many clients"
when trying to connect. Why?
- 3.11) What are the pg_sorttempNNN.NN
+ 3.10) What are the pg_sorttempNNN.NN
files in my database directory?
@@ -260,10 +258,6 @@
1.6) Where can I get support?
- There is no support for PostgreSQL from the University of
- California, Berkeley. It is maintained through volunteer
- effort.
-
The main mailing list is: pgsql-general@PostgreSQL.org.
It is available for discussion of matters pertaining to PostgreSQL.
@@ -316,7 +310,7 @@
#PostgreSQL. I use the unix command irc -c
'#PostgreSQL' "$USER" irc.phoenix.net.
- A list of commercial PostgreSQL support is available at A list of commercial support companies is available at http://www.postgresql.org/users-lounge/commercial-support.html.
1.7) What is the latest release?
@@ -508,8 +502,8 @@
"http://www.PostgreSQL.org/docs/programmer/odbc.htm">ODBC chapter
of the Programmer's Guide.
- 2.2) What tools are available for hooking
- PostgreSQL to Web pages?
+ 2.2) What tools are available for using
+ PostgreSQL with Web pages?
A nice introduction to Database-backed Web pages can be seen at:
http://www.webtools.com
@@ -620,6 +614,9 @@
modifying the file $PGDATA/pg_hba.conf accordingly. This
will allow TCP/IP connections.
+ Inoperative semaphores can also cause crashes during heavy
+ database access.
+
3.6) Why can't I connect to my database from
another machine?
@@ -629,13 +626,7 @@
option, and add an appropriate host entry to the file
pgsql/data/pg_hba.conf.
- 3.7) All my servers crash under concurrent
- table access. Why?
-
- This problem can be caused by a kernel that is not configured to
- support semaphores.
-
- 3.8) How do I tune the database engine for
+ 3.7) How do I tune the database engine for
better performance?
Certainly, indices can speed up queries. The
@@ -672,7 +663,7 @@
data in tables to match an index. See the CLUSTER
manual page for more details.
- 3.9) What debugging features are
+ 3.8) What debugging features are
available?
PostgreSQL has several features that report status information
@@ -728,7 +719,7 @@
in the pgsql/data/base/dbname directory. The client profile
file will be put in the client's current directory.
- 3.10) I get 'Sorry, too many clients' when
+ 3.9) I get 'Sorry, too many clients' when
trying to connect. Why?
You need to increase the postmaster's limit on how many
@@ -763,7 +754,7 @@
the MaxBackendId constant in
include/storage/sinvaladt.h.
- 3.11) What are the pg_sorttempNNN.NN
+ 3.10) What are the pg_sorttempNNN.NN
files in my database directory?
They are temporary files generated by the query executor. For
@@ -1303,4 +1294,3 @@ or
compiler compute the dependencies automatically.