Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in
Toggle navigation
P
Postgres FD Implementation
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Analytics
Analytics
CI / CD
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
Abuhujair Javed
Postgres FD Implementation
Commits
2f7faa54
Commit
2f7faa54
authored
Dec 18, 2004
by
Bruce Momjian
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Update from Ian Barwick
parent
d0a6042f
Changes
1
Show whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
14 additions
and
19 deletions
+14
-19
doc/FAQ
doc/FAQ
+14
-19
No files found.
doc/FAQ
View file @
2f7faa54
Frequently Asked Questions (FAQ) for PostgreSQL
Frequently Asked Questions (FAQ) for PostgreSQL
Last updated:
Wed Dec 15 20:06:34
EST 2004
Last updated:
Fri Dec 17 23:12:56
EST 2004
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
...
@@ -262,8 +262,9 @@
...
@@ -262,8 +262,9 @@
a collection of PostgreSQL technical articles at
a collection of PostgreSQL technical articles at
http://techdocs.PostgreSQL.org/.
http://techdocs.PostgreSQL.org/.
psql has some nice \d commands to show information about types,
The command line client program psql has some \d commands to show
operators, functions, aggregates, etc.
information about types, operators, functions, aggregates, etc. - use
\? to display the available commands.
Our web site contains even more documentation.
Our web site contains even more documentation.
...
@@ -327,20 +328,15 @@
...
@@ -327,20 +328,15 @@
reduce lock contention.
reduce lock contention.
Performance
Performance
PostgreSQL
has performance similar to other commercial and open
PostgreSQL
's performance is comparable to other commercial and
source databases. i
t is faster for some things, slower for
open source databases. I
t is faster for some things, slower for
others. In comparison to MySQL or leaner database systems, we
others. In comparison to MySQL or leaner database systems, we
are faster for multiple users, complex queries, and a
are faster for multiple users, complex queries, and a
read/write query load. MySQL is faster for simple SELECT
read/write query load. MySQL is faster for simple SELECT
queries done by a few users. Of course, MySQL does not have
queries done by a few users. Of course, MySQL does not have
most of the features mentioned in the Features section above.
most of the features mentioned in the Features section above.
We are built for reliability and features, and we continue to
We are built for reliability and features, and we continue to
improve performance in every release. There is an interesting
improve performance in every release.
Web page comparing PostgreSQL to MySQL at
http://openacs.org/philosophy/why-not-mysql.html Also, MySQL is
is a company that distributes its products via open source, and
requires a commercial license for close-source software, not an
open source development community like PostgreSQL.
Reliability
Reliability
We realize that a DBMS must be reliable, or it is worthless. We
We realize that a DBMS must be reliable, or it is worthless. We
...
@@ -384,10 +380,10 @@
...
@@ -384,10 +380,10 @@
item is solely to support the PostgreSQL project and does not fund any
item is solely to support the PostgreSQL project and does not fund any
specific company. If you prefer, you can also send a check to the
specific company. If you prefer, you can also send a check to the
contact address.
contact address.
_________________________________________________________________
Also, if you have a success story about PostgreSQL, please submit it
Also, if you have a success story about PostgreSQL, please submit it
to our advocacy site at http://advocacy.postgresql.org.
to our advocacy site at http://advocacy.postgresql.org.
_________________________________________________________________
User Client Questions
User Client Questions
...
@@ -420,7 +416,7 @@
...
@@ -420,7 +416,7 @@
2.3) Does PostgreSQL have a graphical user interface?
2.3) Does PostgreSQL have a graphical user interface?
Yes, there are several graphical interfaces to PostgreSQL available.
Yes, there are several graphical interfaces to PostgreSQL available.
These include PgAccess http://www.pgaccess.org),
P
gAdmin III
These include PgAccess http://www.pgaccess.org),
p
gAdmin III
(http://www.pgadmin.org, RHDB Admin (http://sources.redhat.com/rhdb/
(http://www.pgadmin.org, RHDB Admin (http://sources.redhat.com/rhdb/
), TORA (http://www.globecom.net/tora/ (partly commercial), and Rekall
), TORA (http://www.globecom.net/tora/ (partly commercial), and Rekall
( http://www.thekompany.com/products/rekall/, proprietary). There is
( http://www.thekompany.com/products/rekall/, proprietary). There is
...
@@ -521,9 +517,9 @@
...
@@ -521,9 +517,9 @@
exceeded your kernel's limit on shared memory space. Each buffer is 8K
exceeded your kernel's limit on shared memory space. Each buffer is 8K
and the default is 1000 buffers.
and the default is 1000 buffers.
You can also use the sort_mem
and work_mem options to increase the
You can also use the sort_mem
(from PostgreSQL 8.0: work_mem) options
maximum amount of memory used by the backend processes for each
to increase the maximum amount of memory used by the backend processes
temporary sort. The default is 1024 (i.e. 1MB).
for each
temporary sort. The default is 1024 (i.e. 1MB).
You can also use the CLUSTER command to group data in tables to match
You can also use the CLUSTER command to group data in tables to match
an index. See the CLUSTER manual page for more details.
an index. See the CLUSTER manual page for more details.
...
@@ -944,9 +940,8 @@ BYTEA bytea variable-length byte array (null-byte safe)
...
@@ -944,9 +940,8 @@ BYTEA bytea variable-length byte array (null-byte safe)
Finally, you could use the OID returned from the INSERT statement to
Finally, you could use the OID returned from the INSERT statement to
look up the default value, though this is probably the least portable
look up the default value, though this is probably the least portable
approach, and the oid value will wrap around when it reaches 4
approach, and the oid value will wrap around when it reaches 4
billion. In Perl, using DBI with Edmund Mergl's DBD::Pg module, the
billion. In Perl, using DBI with the DBD::Pg module, the oid value is
oid value is made available via $sth->{pg_oid_status} after
made available via $sth->{pg_oid_status} after $sth->execute().
$sth->execute().
4.15.3) Doesn't currval() lead to a race condition with other users?
4.15.3) Doesn't currval() lead to a race condition with other users?
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment