This tag is specifically for PostgreSQL version 9.1

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2
votes
1answer
298 views

Users groups/permissions when working with PostgreSQL

While I've been working with PostgreSQL for approximately 1 year, I still feel like a bit of a Newbie. I feel like I'm constantly fighting with psql and pg_dump when it comes to files and ...
3
votes
2answers
885 views

Index max row size error

Is there a upper bound for an array column? I am getting this error when inserting into the array field - PG::Error: ERROR: index row size 3480 exceeds maximum 2712 for index "ix_data" Here's my ...
2
votes
2answers
664 views

Select a range of integers

I have a 'range' of integers (in this case destination ports) that occur: For example: 33848-33254. I want to select 'all' of these without having to do one at a time. is there a range operator? Or ...
2
votes
2answers
152 views

Which performance can I expect?

I'm running a Postgres 9.1 database on a Debian Squeeze server. It's a paravirtualized XEN guest system with 4G RAM and 1 CPU core, based on a i7-2600 host system with Linux software-RAID1. I'm ...
2
votes
2answers
404 views

Is it a good idea to move high-volume and highly-accessed tables to a separate database?

Ours is a web-based application (built on multi-tenant architecture) running PostgreSQL v9.1.3. There are about 450 tables in our application, out of which 2-3 tables, specific to a module in the ...
3
votes
1answer
6k views

PostgreSQL: changing password for a user is not working

I installed PostgreSQL on EC2 machine and now I want to change the password of user postgres I do $ sudo -u postgres psql psql (9.1.5) Type "help" for help. postgres=# ALTER USER postgres WITH ...
2
votes
2answers
309 views

How do I save functions to individual files in PostgreSQL?

I maintain a legacy application that uses a PostgreSQL database. The application is heavily dependent on stored procedures (aka functions). I want to save these functions to files named after the ...
4
votes
1answer
4k views

How to use aes-encryption in PostgreSQL?

I tried aes-encryption by using following statement: SELECT encrypt('test', 'key', 'aes'); which worked, but I am not able to decrypt the value. I inserted it in a field of datatype bytea but I'm ...
1
vote
1answer
142 views

What is the purpose of the keyword “ID” in PostgreSQL?

I'm new to PostgreSQL and I ran into problems using the following query: SELECT * FROM table1 WHERE ID = 1 ERROR: column "id" does not exist LINE 2: WHERE ID = 1 where ID is a column I ...
1
vote
2answers
152 views

postgresql sticking “enable_seqscan=False” in a UDF sensible?

I have a query which is taking 40 seconds to execute over the 80ms that it should if postgres where to filter off the primary key rather than doing a sequential scan. I have to force postgres to ...
5
votes
3answers
848 views

Maximum number of databases for single instance of PostgreSQL 9

Developing a multicustomer application we plan to use a different database for each customer. But it could be more than 1000 customers (applications). Will PostgreSQL handle it without any problems? ...