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• How do I install Postgres Graphical Installer?

  - by Tusar Das

  I am a newbie in using Ubuntu (more precisely never used linux except the production deployment ). Now I choose to hold a grip on the system and intalled a latest 11.10 Ubuntu in my 32 bit Intel** desktop. In this machine **I have a 'administrator' user 'tusar'. I want to install the PostgreSQL graphical version so downloaded this file postgresql-8.4.9-1-linux.bin from here Now If run the file with ./filename command (refuses if I am not root), it opens up the graphical interface and completes the installation (creates user postgres and ask for password, wont complete if I dont give valid password). I checked with /etc/inint.d/postgresql-8.4 status , that postgres is running. But the problem is I am unable to open the GUI (I installed it in /opt/Postgresql ), its telling permission denied even if I am logged in as 'tusar'. Then I tried using the su postgres command and it directly changed the user without password. Now if I run the psql , createdb , its prompting me to install the postgres-client-package but this utilies are already installed and I can view them in my /opt/Postgresql/8.4/bin folder. I can run query through my JDBC utility programs but unable to use neither terminal nor the graphical interface (although I can see pgAdmin3 is there ). Urgent help needed. I have used this guide for the installation.

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• Postgresql - Error: Could not create log file /var/log/postgresql/...

  - by nicefinly

  Every time I try to start postgresql, I get this error: * Starting PostgreSQL 9.2 database server * Error: Could not create log file /var/log/postgresql/postgresql-9.2-main.log To start the server, I have to sudo mkdir the postgresql folder in /var/log/ How can I start postgresql automatically every time I boot up? I already have a postgres user on the Ubuntu 12.10 system.

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• Trying to determine the correct number of XFS allocation groups for postgresql server on Linux

  - by HBlend

  I am running a postgres 8.4.5 server on the linux 2.6.33.7 kernel on an 8 disk raid array with an LSI controller. Most of the tables are around 1GB or less. I know that XFS uses allocation groups (AG) to achieve I/O parallelism. My first question is, does this mean that if two tables are in the same AG, all I/O requests are queued to both of them if either is being read from/written to? If so, I assume I would want to spread my tables across as my allocation groups as possible, correct? Wouldn't this ensure that multiple users querying different tables would get the best performance?

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• Postgresql spawning a ridiculous number of postmaster processes

  - by Kevin Loney

  For some reason postgres is spawning 700 postmaster processes for handling database requests and the postgres log file if full of 'unexpected EOF on client connection', 'incomplete startup packet' and 'sorry, too many clients already'. netstat tells me that all the open connections are local and I'm pretty sure are coming from postgres internally. This particular instance has been running just fine for the last 230 days or so and nothing has changed configuration wise. Any thoughts on where I should be looking to try and resolve this issue? This is my first time diagnosing a problem like this so if there is any steps I can take to help narrow down the cause that would be helpful as well.

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• Installing and running two postgresql versions on different ports (or two instances of same server)

  - by Andrius

  I have postgresql 9.1 installed on my machine (Ubuntu). I need another postgresql server that would run next to the old one. Exact version does not matter, but I'm thinking of using 9.2 version. How could I properly install and run another postgresql version without screwing old one (like upgrading). So those versions would run independently on different ports. Old one on 5432 and new one on 5433 for example. The reason I need this is for two OpenERP versions databases. If I run two OpenERP servers (with different versions) on single postgresql port, it crashes because new OpenERP version detects old versions database and tries to run it, but it crashes because it uses another schemes. P.S or maybe I could just run same postgresql server on two ports? Update So far I tried this: /usr/lib/postgresql/9.1/bin/pg_ctl initdb -D main2 It created new cluster. I changed port to 5433 in new clusters directory postgresql.conf file. Then ran this: /usr/lib/postgresql/9.1/bin/pg_ctl -D main2 -l logfile start I got response server starting. But when I tried to enter new cluster's template database with: psql template1 -p 5433 I got this error: psql: could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5433"? Also now when I try to stop server with: /usr/lib/postgresql/9.1/bin/pg_ctl -D main2 -l logfile start I get this error: pg_ctl: PID file "main2/postmaster.pid" does not exist Is server running? So I don't understand if server is running and what I'm missing here? Update Found what was wrong. Stupid me. I didn't notice that when I changed port in .conf file, that line was commented already. So actually I didn't change anything first time, but thought I did and it used default 5432 port.

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• Installing pgAdmin III for postgreSQL 9.2

  - by Mikey

  I have a windows server that runs postgresql 9.2. I want to hit it using pgAdmin III from my Ubuntu Linux 12.10 workstation box. I installed pgAdmin III from synaptic and also tried direct download from postgreSQL site using software installer. Regardlesss, I can get only get pgAdmin III for postgresql 9.1. When I run pgAdmin III and point to my server I get an error message telling me that the database is 9.2 and my pgAdmin III is for 9.1, isn't compatible with 9.2. I can access the server itself fine OK from the Ubuntu box - I have Python programs that hit the database with no problems - but I need pgAdmin III for 9.2 running under Ununtu Linux 12.10. Is it available? Where do I get it?

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• PostgreSQL data diff

  - by skanatek

  Note: this question is not about syncing database schema/structure Problem In my web application I have a PostgreSQL database server (PGS) and a (separate machine) business logic server (BLS) which regularly (every minute or two) queries 'SELECT ALL' against PGS. The problem is that the 'SELECT ALL' query can easily return 50-200 MB each time. It is obvious that it would be not so good architecture-wise to transfer so much data so frequently over the web. Possible solution What I would like to do is to run some diff tool on PGS and compare the new query with the previous query (all this should be done on PGS). Once the comparison is done I would like to get a dump from PGS and transfer it to BLS. I expect that a diff-based dump would be much, much smaller than the whole 'SELECT ALL' query. Question Is there any data diff tool for PostgreSQL that can do diffs that compare PostgreSQL data between 2 tables or 2 dumps? Note: I would prefer some open-source software tool.

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• PostgreSQL 9.1, pgadmin III, Ubuntu 12.04 LTS, support functions

  - by Chaz SLiger

  When pgAdmin III is used to open a PostgreSQL database the following message appears. There does not seem to be any obvious package listed in the Ubuntu Software Center for this. The server lacks instrumentation functions. pgadmin III uses some support functions that are not available by default in all PostgreSQL versions. These enable some tasks that make life easier when dealing with log files and configuration files. The adminpack is installed and activated by default if you are running the one-click installer of PostgreSQL. On Unix, you may have to install the contrib package, either with your package installer tool or by compilation.

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• I'm trying to install postgresql on 12.04, and it's just not working

  - by Pointy

  I've got a new installation and I'm trying to get Postgresql working. The database was installed and I started a restoration from a dump on another machine, but that ran into problems because I had forgotten to install the "contrib" package. I used "pg_dropcluster" to drop the old cluster so I could start from scratch, and that's when things went weird. The first manifestation of this was that /etc/postgresql was just empty. I uninstalled the postgresql package and reinstalled, several times, to no avail. Is there something I can do to figure out why apt is confused here? I've done this many times on many systems and never seen anything like this happen.

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• Learning PostgreSql: Reading and Writing From .Net

  - by Alexander Kuznetsov

  In this post we shall do some setup tasks, save a few rows of data from a .Net client to PostgreSql, and read it back. Setting up We have set up a virtual machine running Red Hat Linux, installed PostgreSql 9.3 on it, and made sure there is enough disk space. 9.3 is a very recent version, released this September. Because PostgreSqlis not known for releasing before the full testing is complete, we did not have to wait for the next service pack or something like that. Smoke test On the client machine...(read more)

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• Migrate from MySQL to PostgreSQL on Linux (Kubuntu)

  - by Dave Jarvis

  A long time ago in a galaxy far, far away... Trying to migrate a database from MySQL to PostgreSQL. All the documentation I have read covers, in great detail, how to migrate the structure. I have found very little documentation on migrating the data. The schema has 13 tables (which have been migrated successfully) and 9 GB of data. MySQL version: 5.1.x PostgreSQL version: 8.4.x I want to use the R programming language to analyze the data using SQL select statements; PostgreSQL has PL/R, but MySQL has nothing (as far as I can tell). A New Hope Create the database location (/var has insufficient space; also dislike having the PostgreSQL version number everywhere -- upgrading would break scripts!): sudo mkdir -p /home/postgres/main sudo cp -Rp /var/lib/postgresql/8.4/main /home/postgres sudo chown -R postgres.postgres /home/postgres sudo chmod -R 700 /home/postgres sudo usermod -d /home/postgres/ postgres All good to here. Next, restart the server and configure the database using these installation instructions: sudo apt-get install postgresql pgadmin3 sudo /etc/init.d/postgresql-8.4 stop sudo vi /etc/postgresql/8.4/main/postgresql.conf Change data_directory to /home/postgres/main sudo /etc/init.d/postgresql-8.4 start sudo -u postgres psql postgres \password postgres sudo -u postgres createdb climate pgadmin3 Use pgadmin3 to configure the database and create a schema. The episode continues in a remote shell known as bash, with both databases running, and the installation of a set of tools with a rather unusual logo: SQL Fairy. perl Makefile.PL sudo make install sudo apt-get install perl-doc (strangely, it is not called perldoc) perldoc SQL::Translator::Manual Extract a PostgreSQL-friendly DDL and all the MySQL data: sqlt -f DBI --dsn dbi:mysql:climate --db-user user --db-password password -t PostgreSQL > climate-pg-ddl.sql mysqldump --skip-add-locks --complete-insert --no-create-db --no-create-info --quick --result-file="climate-my.sql" --databases climate --skip-comments -u root -p The Database Strikes Back Recreate the structure in PostgreSQL as follows: pgadmin3 (switch to it) Click the Execute arbitrary SQL queries icon Open climate-pg-ddl.sql Search for TABLE " replace with TABLE climate." (insert the schema name climate) Search for on " replace with on climate." (insert the schema name climate) Press F5 to execute This results in: Query returned successfully with no result in 122 ms. Replies of the Jedi At this point I am stumped. Where do I go from here (what are the steps) to convert climate-my.sql to climate-pg.sql so that they can be executed against PostgreSQL? How to I make sure the indexes are copied over correctly (to maintain referential integrity; I don't have constraints at the moment to ease the transition)? How do I ensure that adding new rows in PostgreSQL will start enumerating from the index of the last row inserted (and not conflict with an existing primary key from the sequence)? How do you ensure the schema name comes through when transforming the data from MySQL to PostgreSQL inserts? Resources A fair bit of information was needed to get this far: https://help.ubuntu.com/community/PostgreSQL http://articles.sitepoint.com/article/site-mysql-postgresql-1 http://wiki.postgresql.org/wiki/Converting_from_other_Databases_to_PostgreSQL#MySQL http://pgfoundry.org/frs/shownotes.php?release_id=810 http://sqlfairy.sourceforge.net/ Thank you!

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• issue in installing postgresql 9.3.4 on Windows server 2003 x64

  - by randydom

  Hello i really did all what i know to install the PostgreSQL 9.3.4 on my windows 2003 server x64, but i'm always stopped with this error : please see the error : http://oi57.tinypic.com/s4tb8i.jpg I really don't know what to do , if i click OK then when i go to the windows services list i don't find the PostgreSQL service so i can't Start the service . can any one please help me to install it correctly . PS: i've followed all steps in the : wiki.postgresql.org/wiki/Troubleshooting_Installation many thanks . here's the installer log * where i get " Failed to initialise the database cluster with initdb " : Called IsVistaOrNewer()... 'winmgmts' object initialized... Version:5.2 MajorVersion:5 Ensuring we can write to the data directory (using cacls): Executing batch file 'rad22ADE.bat'... processed dir: C:\Program Files\PostgreSQL\9.2\data Executing batch file 'rad22ADE.bat'... The files belonging to this database system will be owned by user "Administrator". This user must also own the server process. The database cluster will be initialized with locale "English_United States.1252". The default text search configuration will be set to "english". fixing permissions on existing directory C:/Program Files/PostgreSQL/9.2/data ... initdb: could not change permissions of directory "C:/Program Files/PostgreSQL/9.2/data": Permission denied Called Die(Failed to initialise the database cluster with initdb)... Failed to initialise the database cluster with initdb Script stderr: Program ended with an error exit code Error running cscript //NoLogo "C:\Program Files\PostgreSQL\9.2/installer/server/initcluster.vbs" "NT AUTHORITY\NetworkService" "postgres" "****" "C:\Program Files\PostgreSQL\9.2" "C:\Program Files\PostgreSQL\9.2\data" 5432 "DEFAULT" 0 : Program ended with an error exit code Problem running post-install step. Installation may not complete correctly The database cluster initialisation failed. Creating Uninstaller Creating uninstaller 25% Creating uninstaller 50% Creating uninstaller 75% Creating uninstaller 100% Installation completed Log finished 05/02/2014 at 04:04:04

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• Can't get PostgreSQL to run in Debian Lenny

  - by nuqqsa

  I'm trying to install PostgreSQL 8.3 on Debian Lenny (kernel 2.6.26-2-686) using the package manager: sudo apt-get install postgresql-8.3 postgresql-client-8.3 postgresql-contrib-8.3 postgresql-common When deploying the package postgresql-common, the following warning is displayed: supported_versions: WARNING: Unknown Debian release: 5.0.4 I wonder if this is related to the problem I describe below. Next I try to launch the database server but it doesn't have any effect, neither any logs are generated. sudo /etc/init.d/postgresql-8.3 start Does anybody have a clue of what might be going on?

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• Learning PostgreSql: Embracing Change With Copying Types and VARCHAR(NO_SIZE_NEEDED)

  - by Alexander Kuznetsov

  PostgreSql 9.3 allows us to declare parameter types to match column types, aka Copying Types. Also it allows us to omit the length of VARCHAR fields, without any performance penalty. These two features make PostgreSql a great back end for agile development, because they make PL/PgSql more resilient to changes. Both features are not in SQL Server 2008 R2. I am not sure about later releases of SQL Server. Let us discuss them in more detail and see why they are so useful. Using Copying Types Suppose...(read more)

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• Learning PostgreSql: bulk loading data

  - by Alexander Kuznetsov

  In this post we shall start loading data in bulk. For better performance of inserts, we shall load data into a table without constraints and indexes. This sounds familiar. There is a bulk copy utility, and it is very easy to invoke from C#. The following code feeds the output from a T-SQL stored procedure into a PostgreSql table: using ( var pgTableTarget = new PgTableTarget ( PgConnString , "Data.MyPgTable" , GetColumns ())) using ( var conn = new SqlConnection ( connectionString )) { conn.Open...(read more)

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• Learning PostgreSql: Functions and refcursors

  - by Alexander Kuznetsov

  In this post we shall create a function that returns data, and invoke it from our C# client. There are no stored procedures in PostgreSql, only functions. This is different from T-SQL, but consistent with many other languages, such as C#. Creating a function Functions can return many different types. Learning all the available options might take some time. However, for the project we are working on, we need to replicate several T-SQL stored procedures which take column list as a parameter, and use...(read more)

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• Unicode in PostgreSQL 8.4

  - by user8382

  I installed the "postgresql-8.4" package with default options. Everything worked fine, however I can't seem to manage to create unicode databases: -- This doesn't work createdb test1 --encoding UNICODE -- This works createdb test2 The error message "createdb: database creation failed: ERROR: new encoding (UTF8) is incompatible with the encoding of the template database (SQL_ASCII)" is a bit puzzling because (afaik) I don't use a template for creating the new db, or is it implicitely referring to the default "postgres" database for some reason ? Or maybe I'm missing a setting in a .conf file ?

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• postgresql No space left on device

  - by pstanton

  Postgres is reporting that it is out of disk space while performing a rather large aggregation query: Caused by: org.postgresql.util.PSQLException: ERROR: could not write block 31840050 of temporary file: No space left on device at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1592) at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1327) at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:192) at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:451) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:350) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:304) at org.hibernate.engine.query.NativeSQLQueryPlan.performExecuteUpdate(NativeSQLQueryPlan.java:189) ... 8 more However the disk has quite a lot of space: Filesystem Size Used Avail Use% Mounted on /dev/sda1 386G 123G 243G 34% / udev 5.9G 172K 5.9G 1% /dev none 5.9G 0 5.9G 0% /dev/shm none 5.9G 628K 5.9G 1% /var/run none 5.9G 0 5.9G 0% /var/lock none 5.9G 0 5.9G 0% /lib/init/rw The query is doing the following: INSERT INTO summary_table SELECT t.a, t.b, SUM(t.c) AS c, COUNT(t.*) AS count, t.d, t.e, DATE_TRUNC('month', t.start) AS month, tt.type AS type, FALSE, tt.duration FROM detail_table_1 t, detail_table_2 tt WHERE t.trid=tt.id AND tt.type='a' AND DATE_PART('hour', t.start AT TIME ZONE 'Australia/Sydney' AT TIME ZONE 'America/New_York')>=23 OR DATE_PART('hour', t.start AT TIME ZONE 'Australia/Sydney' AT TIME ZONE 'America/New_York')<13 GROUP BY month, type, t.a, t.b, t.d, t.e, FALSE, tt.duration any tips?

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• Rails application keeps timing out when attempting to connect to Postgresql DB

  - by Corillian

  I'm hosting a postgresql database on a small windows azure Ubuntu 13.04 VM with a default postgresql.conf. I have a Rails application running on a medium windows azure Ubuntu 13.04 VM. When accessing the postgresql database the rails application is constantly timing out. In its database.yml I have the connection pool size set to 120 and the timeout set to 15 seconds. Despite this my rails logs are full of the following error message: ActiveRecord::ConnectionTimeoutError: could not obtain a database connection within 5 seconds (waited 5.0023203 seconds). The max pool size is currently 120; consider increasing it. My postgresql.conf has a max connection limit of 120, making it any larger prevents the server from being able to successfully restart. I've also made sure that ssl was off in the postgresql.conf per this article but beyond that I have no idea what's going on. My postgresql logs don't contain any info indicating something is going wrong. My website is getting ~1k hits per day so perhaps a small VM instance just isn't powerful enough? I appreciate any assistance! [Edit1] The postgresql database is in a separate cloud service within the same affinity group. For example: db small VM: mydatabase.cloudapp.net (Affinity Group US East) forums medium VM: myforums.cloudapp.net (Affinity Group US East) On the database server I have opened port 5432. The connection to the database server from the forums server is using its hostname. Is it possible that the DNS resolution is what's taking so long?

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• Learning PostgreSql: old versions of rows are stored right in the table

  - by Alexander Kuznetsov

  PostgreSql features multi-version concurrency control aka MVCC. To implement MVCC, old versions of rows are stored right in the same table, and this is very different from what SQL Server does, and it leads to some very interesting consequences. Let us play with this thing a little bit, but first we need to set up some test data. Setting up. First of all, let us create a numbers table. Any production database must have it anyway: CREATE TABLE Numbers ( i INTEGER ); INSERT INTO Numbers ( i ) VALUES...(read more)

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• Regarding inbuilt application PostGreSQL

  - by Mohamed Fazil

  In my work I need to study about FOSSology. This tool supports only in Linux. So i have installed Ubuntu version 12.10 Quantal. Through net i have come to know Ubuntu has inbuilt postgreSQL application. But when i installed i don't know how to see whether it is already installed. Could you please help me in solving this issue. It's high priority and i have short time to finish my work. I have downloaded manually and while install after executing this command sudo dpkg -i File.dep i am getting error message saying that This need root user privileges. PLease help me.

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• Running multiple versions of PostgreSQL on the same Ubuntu server

  - by user51938

  I have PostgreSQL 8.4 and 9.0 running on the same server (Ubuntu Lucid). I installed them both via apt-get (8.4 with the default package sources, and 9.0 after adding the ppa from https://launchpad.net/~pitti/+archive/postgresql). When I run a command like "createdb" from the command line or start up the "psql" shell, PostgreSQL version 8.4 is used by default on my system. So, how do I force these commands to use PostgreSQL 9.0 instead of 8.4?

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• ODBC error state S1092: postgresql through ODBC

  - by mechcow

  While performing an upgrade, our in-house software started to report the following strange error. It is a C++ application talking to a remote postgresql database, defined through ODBC: ODBC error state S1092, native error 0. [unixODBC][Driver Manager]Invalid attribute/option identifier Both the client and the server are Centos 5.4 Xen guests with the following RPMs installed: postgresql-libs-8.1.18-2.el5_4.1 postgresql-odbc-08.01.0200-3.1 postgresql-8.1.18-2.el5_4.1 postgresql-server-8.1.18-2.el5_4.1 Its possible the schema changed as part of the upgrade, could this explain the error message? What does this error message actually indicate, and do you know any likely causes of it?

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• Resolving “ssl handshake failure” error in PostgresQL

  - by Mitch

  I would like to connect to my Postgres 8.3 database using SSL from my XP client using OpenSSL. This works fine without SSL. When I try it with SSL (no client certificate), I get the error: error:140790E5:SSL routines:SSL23_WRITE:ssl handshake failure I have followed the instructions in the Postgres manual for SSL including creating a self-signed certificate. In my pg_hba.conf there is a line: host dbname loginname 123.45.67.89/32 md5 The version of OpenSSL on the server is 0.9.8g and on the client is 0.9.8j. I'd appreciate any suggestions for tracking down the problem. Edit: The uncommented lines from postgresql.conf are: data_directory = '/var/ebs0/postgres/main' hba_file = '/etc/postgresql/8.3/main/pg_hba.conf' ident_file = '/etc/postgresql/8.3/main/pg_ident.conf' external_pid_file = '/var/run/postgresql/8.3-main.pid' listen_addresses = '*' port = 5432 max_connections = 100 unix_socket_directory = '/var/run/postgresql' ssl = true shared_buffers = 24MB

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• Postgresql starup script for second instance?

  - by Andrius

  I need to run my second postgresql instance when linux boots. I added this command (like in postgresql documentation) in rc.local: /usr/lib/postgresql/9.1/bin/pg_ctl start -l logfile -D /var/lib/postgresql/9.1/main2 But if I try to run pg_ctl: cannot be run as root Please log in (using, e.g., "su") as the (unprivileged) user that will own the server process. t, it gives me this error: How can I specify to run that command as postgres, but actually execute it with root (because root owns it). Or is there some better way to make second init script for postgresql? P.S. (I'm using Ubuntu)

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