This tag is specifically for PostgreSQL version 9.2

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Constraint on Composite Type

How can I create a constraint on a sub-field of composite type? Pseudocode create type axis( major_axis float, minor_axis float, angle float constraint angle_constraint check(angle ...
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1answer
359 views

Group By primary key or DISTINCT increase query time over 1000x with limit

Also see http://stackoverflow.com/questions/17741167/hibernate-jpa-improve-performance-of-distinct-query but I realized this is mainly a PostgreSQL issue. My application uses a 3rd party extension to ...
4
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2answers
710 views

Why does Postgres generate an already used PK value?

I'm using Django, and every once in a while I get this error: IntegrityError: duplicate key value violates unique constraint "myapp_mymodel_pkey" DETAIL: Key (id)=(1) already exists. My database ...
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1answer
57 views

Wrong return results

I'm trying to grab all the rows that have a risk of critical or high, with the discription or synopsis or solution or cve like password. But it keeps showing all rows not just rows with a risk of ...
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1answer
167 views

pg_upgrade fails with lc_ctype cluster values do not match

I'm upgrading my PostgreSQL version 9.1.4 database to version 9.2.4. Both the old and the new version are the bundled versions of postgresapp.com for Mac OS X. When trying to upgrade the database I ...
4
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1answer
277 views

Why aren't my Postgres WAL segments (up to the point of turning on archiving) being archived?

The pg_xlog directory for my master cluster looks like this: -rw------- 1 postgres postgres 16M Jun 21 21:42 000000010000000000000001 -rw------- 1 postgres postgres 16M Jun 21 22:42 ...
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1answer
325 views

How does Postgres know which logs have been archived?

I'm asking this because Postgres was hard-stopped yesterday, and I fear that there could be partial / corrupt data in one of my archived log segments. I'd like to simply delete the logs from my slave ...
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1answer
2k views

How to retrieve data from Postgresql index using java

I am writing an application for searching, using text search of Postgresql. I am a beginner in Database. I created a Gin index and i am trying to get data from it. My code is import ...
6
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1answer
502 views

PostgreSQL “freeze”/“unfreeze” command equivalents

In Derby (an embedded database written in Java which is mostly used for testing or prototyping) there are "freeze" and "unfreeze" commands which can be used during an online backup. "Freeze" simply ...
5
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2answers
586 views

PostgreSQL: Executing DDL on every schema

I've a multi-tenant DB setup, and need to add some columns. I'm using schemas (and search_path) to partition my users, so I'm looking for a ubiquitous way to apply a DDL-schema change to all my ...
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1answer
916 views

Why does `pg_lsclusters` not list my Postgres cluster?

I apt-get installed Postgres 9.2.4 (using PPA). I used pg_dropcluster --stop 9.2 main to remove the default database cluster, because I intended on creating a new cluster on a separate SSD volume (a ...
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0answers
697 views

How to import a text file with '|' delimited data to PostgreSQL database? [closed]

I have a text file with | delimited data that I want to import to a table in PostgreSQL database. PgAdminIII only exports CSV files. I converted the file to a CSV file using MS excel but still was ...
4
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2answers
1k views

Postgresql function to create table

I want to create a function in order to create a table with a specific structure pasing part of the name of the table as an argument so the name of the table is t_ . Similar to this: CREATE OR ...
3
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1answer
74 views

Workaround the snapshot isolation in a writable CTE

The postgres docs say: The sub-statements in WITH are executed concurrently with each other and with the main query. Therefore, when using data-modifying statements in WITH, the order in which the ...
2
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2answers
1k views

Postgres 9.2 select multiple specific rows in one query

I have a table with three columns, Id Serial. Value real. timein Timestamp. I want to select the values based on a range of days ie. from two days ago until now. The table may contain one or two ...
5
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1answer
144 views

LISTEN / NOTIFY privileges

I have a single postgres database, with two users; Alice and Bob. I would like to be able to do a NOTIFY alice_channel 'sensitive data' without Bob being able to sneakily LISTEN in just by guessing ...
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1answer
391 views

How to install and configure Postgres-XC in windows?

Can anybody suggest me any resources of the complete installation procedure of postgres-XC in windows. I've installed postgresql-9.2 in my windows and can use it. Now I need to know the installation ...
2
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1answer
762 views

Is replication from SQL Server 2008 to PostgreSql possible?

Is it possible ? Sql Server as publisher(master) and PostgreSql as slave(subscriber) ? Any type of replication really.
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1answer
929 views

Use cases for hstore vs json datatypes in postgresql [closed]

In Postgresql, the hstore and json datatypes seem to have very similar use cases. When would you choose to use one vs. the other? Initial thoughts: You can nest with json; you can't with hstore ...
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1answer
885 views

PostgreSQL stored function that returns arbitrary resultset

I would like to write a PostgreSQL stored function that essentially behaves like the stored procedures I know and love from MSSQL and MySQL where I can just wrap a query that takes no parameters and ...
2
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2answers
3k views

Creating a PostgreSQL SERIAL column using pgAdmin3

When I use pgAdmin3 to create a column of type serial, why does it instead create nextval('prices_id_seq'::regclass)? Should we keep this type defined by pgAdmin? Manually create the table with SQL ...
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1answer
357 views

Postgres: Given some parent id's how can I SELECT X child records for each?

In Postgres, if I have : Parent Table id, name 1, Parent1 2, Parent2 ..... 5, Parent5 Child Table id, parent_id, name 1, 1, Child1 2, 1, Child2 ..... 6, 2, Child6 ..... 25, 5, Child25 so 5 ...
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2answers
146 views

Different queries result in big difference in performance

I have 2 similar functions, different way result in big diff in performance. The PostgreSQL version: 9.2.1. Function 1 create or replace function func_1() returns text as $$ declare v_i ...
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0answers
114 views

Identical Postgres index scan taking 5x longer on server

I have an intermediate table for managing a many-to-many relation between tables called Expert and Subject: Column | Type | Modifiers ...
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1answer
193 views

Postgres sql dump import error

I'm facing a issue while importing the dump in my system, i'm getting the error as " Error: syntax error at or near "" LOCK TABLESDB_NAME` WRITE;" and exiting with "out of memory" We had ...
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1answer
803 views

which postgres do i have installed? what directory needs to be in my path to run initdb?

I need to use postgresql with ruby on rails. I have these directories /Library/PostgreSQL and /usr/local/Cellar/postgresql/usr:local:Cellar:postgresql:9.2.2 This 2nd directory name is ...
2
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2answers
2k views

Recursive query using plpgsql

I'm trying to write a plpgsql function that recursively returns a set of columns from records in a tree structure. I have a data table and a table to link the data together: DATATABLE ----------- id ...
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1answer
134 views

clusterdb stopped working for PostgreSQL database in Ubuntu 12.04 server

After a fresh PostgreSQL install (version 9.2) on my Ubuntu server 12.04, clusterdb utility stopped working. I used the same config files as I used with version 9.1. Below is the actual command: ...
3
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1answer
4k views

Very slow DELETE in PostgreSQL, workaround?

I have a database on PostgreSQL 9.2 that has a main schema with around 70 tables and a variable number of identically structured per-client schemas of 30 tables each. The client schemas have foreign ...
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0answers
749 views

Install PostgreSQL 9.2 on Windows using WIN1252 encoding.

I had installed PostgreSQL 9.2 earlier and it always installed with the encoding being WIN1252 (the default database was WIN1252). I then some time ago reinstalled it with the encoding being UTF8 (I ...
0
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1answer
291 views

Postgresql Run 'Jobs' At Specific Times

I have a normal problem to anyone that can't trust on applications to do their 'work/ AKA be online' and needs a DB Stored Procedure to run every minute . Scenario : PostgreSQL 9.2 Need To Run A ...
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3answers
8k views

PostgreSQL user can not connect to server after changing password

I've met this with 4 roles I created: After changing password for a user in pgAdmin III using the GUI (1), that user can not log in any more. pgAdmin III show error message: An error has occurred: ...
4
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1answer
178 views

Materialized View PostgreSQL

Is there any possibility of having built-in materialized views in PostgreSQL ? I don't want Gardner version or somehthing like physical table populated by triggers. I've read that was/is something ...
3
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2answers
297 views

Running a TPC-C Benchmark Without sleep() i.e. key-in + think time

We are running a TPC-C benchmark against a PostgreSQL 9.2 server using JdbcRunner-1.2 implementation. During first few tests we were not getting a smooth (that is, without sudden spikes down to almost ...
0
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1answer
539 views

Configuring Postgres 9.2 streaming replication with Redhat Clustering Suite for High Availability

I'm in the process of configuring postgresql 9.2 streaming replication with Redhat Clustering Suite for high availability. I have 1 master and 1 hot standby configured to replicate the data from ...
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1answer
1k views

Tuning Postgres config for new Database Server

I have finally gotten a Purpose Built Database machine for a project i'm working on. The server is a 4 Core Xeon with 64GB of Ram and a Raid10 of 10krpm drives. I have just got the database moved ...
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2answers
273 views

Installing PostgreSQL 9.2 and PostGIS 2.0 on Ubuntu 12

At the current moment, March 4th 2013, can PostGIS2.0 be install with PostgreSQL 9.2? I checked their website and to my understanding it is not possible... I hope that's not the case. Can anyone ...
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1answer
413 views

slow queries - set weight to token type in tsquery - postgresql

Postgresql version 9.2.3! I'm working on a database for mapping of chemical names. My main table contains aprox 91 million records and it's indexed by gin. I want to query it with multiple names (I'm ...
2
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1answer
3k views

Why is a new user allowed to create a table?

I'm wondering why a newly created user is allowed to create a table after connecting to a database. I have one database, project2_core: postgres=# \l List of ...
2
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1answer
122 views

Tools and methodologies to keep to DBs aligned [closed]

2 DBs having schemas that represent the same semantic objects. The first one is production DB (Non-RDBMS, in-house implemented in-memory DB with shitload of RAM). Other is Postgres. Once in a while ...
0
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1answer
154 views

Can this array group count query be improved?

So I have the following query explain analyze with tags as ( select unnest(tags) as tag_name from tasks where user_id = 1 ) select count(9), tag_name from tags ...
4
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2answers
2k views

Struggling with pgBouncer

I've got Postgres 9.2 and PgBouncer (The version that came with the 'stack builder'). I have a .net application connecting via Npgsql version 2.0.12 on a win7 machine. My application can happily ...
4
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3answers
573 views

Full Text Search With PostgreSQL

i have a table with this rows: Stickers ------------------------------------------------------ ID | Title |Keywords (ts_vector) ------------------------------------------------------ ...
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2answers
560 views

inet_client_addr in PostgreSQL don't return IP

i trying use the function inet_client_addr() (PostgreSQL 9.2) in a trigger, but the return is '::1/128'. This is a problem with my script or with the server? CREATE OR REPLACE FUNCTION ...
0
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1answer
53 views

Basic Question on input to PostgreSQL

I have installed PostgreSQL on a Windows XP laptop so I can learn about using PostgreSQL. My problem is that the PostgreSQL tutorial starts of with the instruction To create a new database, in this ...
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1answer
968 views

How does Postgres 9.2's streaming replication handle schema changes, and initial table setup?

I want to set up a backup database on the physical server which sits right under my primary physical database server. I'm using Postgres 9.2, and I want to use synchronous, streaming replication (for ...
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1answer
560 views

Lost postgreSQL password in Windows installation

I have postgresql 9.2 installed on a windows XP machine. I have lost the postgres password. I looked at answers given to a similar question asked 6 months ago. The answer given there required the ...
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3answers
847 views

Postgresql 9.2 won't start after rerunning installer

All, I made a fatal mistake and accidentally ran the core installer for postgresql rather than the stackinstaller. I didn't go all the way through the install process but it still set something that ...
4
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1answer
113 views

Postgresql, write archive file over mount, secure against simultaneous access?

I am using Postgres 9.2.1 and am saving my archivable WAL over a NFS share. I just use the basic command, given as an example in the postgresql.conf test ! -f /mnt/server/archivedir/%f && cp ...
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4answers
2k views

Cannot shutdown old postmaster when upgrading to Postgres 9.2

I'm upgrading to Postgres 9.2.2 (from 9.1.4). When I try to upgrade the DBs using: pg_upgrade -b /usr/local/Cellar/postgresql/9.1.4/bin -B /usr/local/Cellar/postgresql/9.2.2/bin -d ...