This tag is specifically for PostgreSQL version 9.2

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2
votes
0answers
328 views

Getting multiple queries with “show transaction isolation level” in pg_activity

I am using PostgreSQL server for my production use. When I fire a query like select * from pg_stat_activity on my server, I am getting 98% of queries like SHOW TRANSACTION ISOLATION LEVEL and ...
0
votes
0answers
57 views

postgres-xc - ERROR: object already defined [closed]

I am configuring two data nodes and a coordinator on postgres-xc. I get eh following error: ERROR: PGXC Node datanode1: object already defined CREATE NODE pgxc_pool_reload ------------------ t (1 ...
1
vote
1answer
447 views

Client Encoding Mismatch when creating new database

I'm upgrading a program for work that uses postgres 9.2.4. When the program is run for the first time, it creates a production database, using the existing template database. The program used to run ...
0
votes
2answers
1k views

Running a UPDATE on 3 million records

I have two actors in this transaction. One actor is a table "update_assets" is a set of records with data that is up-to-date and new. The second actor is a table "application_assets" which is a table ...
1
vote
1answer
46 views

Show clients with staff assigned and no staff assigned

I am trying to write a query to show a client list including whether or not there is a staff member assigned. If I use this query: SELECT g.name AS group, cl.name_lastfirst_cs AS client FROM clients ...
2
votes
2answers
1k views

Setting up binary replication between two PostgreSQL instances

I have two virtual machines: dbrepa (-.175) and dbrepb (-.191). Both have PostgreSQL 9.2 installed; once PG was installed (never initialized) on dbrepa, dbrepb was made as a clone. I need to have the ...
0
votes
1answer
2k views

Create Language plperl - Error: could not load library plperl.dll

When I create language plperl , I get error: ERROR: could not load library "C:/Program Files/PostgreSQL/9.1/lib/plperl.dll": The specified module could not be found. But in my computer, ...
0
votes
1answer
88 views

Is PostgreSQL appropriate for processing this large but simple dataset? [closed]

I have a dataset I'm not sure how to store. The structure is simple: 30 numeric attributes identified by about 15 billion x, y, and t values. We're expecting ~17k t values and maybe 90k x/y ...
-2
votes
1answer
109 views

Make “NOT NULL” default in Postgresql 9.2 [closed]

I use NOT NULL a lot when creating columns. Is there a way to make this default when defining columns? In other words, make column is_nullable default to NO. (I realize this would make it harder ...
2
votes
0answers
415 views

PostgreSQL index array of int4range using GIN / GIST - custom operator class

Here is my table: CREATE TABLE mytable ( id INT NOT NULL PRIMARY KEY, val int4range[] ); I want to index the val column: CREATE ...
1
vote
1answer
155 views

changing server roles in streaming replication

I want to implement streaming replication using postgresql-9.2.4 in my reporting application. I came stuck on the below scenario. create master and slave with synchronous replication which is ...
4
votes
2answers
2k views

PostgreSQL CREATE TABLE creates with incorrect owner

I'm using PostgreSQL 9.2.4. When I create a table as a non-superuser in a database owned by that non-superuser, it is owned by the postgres user, so I can't put any data into it unless I explicitly ...
1
vote
1answer
247 views

Do I need to perform any tasks after Postgres goes into recovery mode?

For starters, I do not have any sort of automated failover in place. After two scenarios, I'm unsure of the state of the database and any required actions, if any, to take: My master server ...
3
votes
1answer
957 views

I need help understanding Postgres's archive cleanup functionality

I'm reading http://www.postgresql.org/docs/9.2/static/pgarchivecleanup.html and to me it seems like it will remove any and all WAL segments from my slave server that aren't required to perform ...
2
votes
2answers
222 views

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 ...
3
votes
1answer
476 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
votes
2answers
2k 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 ...
0
votes
1answer
61 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 ...
0
votes
1answer
283 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
votes
1answer
359 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 ...
1
vote
1answer
483 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 ...
0
votes
1answer
3k 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
votes
1answer
838 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
votes
2answers
1k 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 ...
1
vote
1answer
2k 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 ...
0
votes
0answers
1k 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 ...
5
votes
2answers
3k 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
votes
1answer
100 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
votes
2answers
2k 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 ...
6
votes
1answer
203 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 ...
0
votes
1answer
491 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
votes
1answer
1k 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.
3
votes
1answer
1k 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 ...
1
vote
1answer
1k 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 ...
3
votes
2answers
5k 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 ...
1
vote
1answer
570 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 ...
2
votes
2answers
155 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 ...
1
vote
0answers
132 views

Identical Postgres index scan taking 5x longer on server [closed]

I have an intermediate table for managing a many-to-many relation between tables called Expert and Subject: Column | Type | Modifiers ...
0
votes
1answer
245 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 ...
1
vote
1answer
1k 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
votes
2answers
3k 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 ...
1
vote
1answer
150 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: ...
4
votes
1answer
6k 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 ...
5
votes
1answer
2k views

VACUUM returning disk space to operating system

VACUUM usually does not return disk space to operating system, except in some special cases. From the docs: The standard form of VACUUM removes dead row versions in tables and indexes and marks ...
0
votes
0answers
1k 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
votes
1answer
378 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 ...
5
votes
4answers
13k 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
votes
1answer
232 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
votes
2answers
416 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 ...
1
vote
1answer
701 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 ...