Tagged Questions

1
vote
2answers
1k views

PostgreSQL: Query for location of global tablespace?

I have been trying to make our database clients pro-active about not filling up the partition on which the database they are using resides. As all our clients are on the same host as the database ...
6
votes
3answers
2k views

Measure the size of a PostgreSQL table row

I have a PostgreSQL table. select * is very slow whereas select id is nice and quick. I think it may be that the size of the row is very large and it's taking a while to transport, or it may be some ...
1
vote
1answer
908 views

Freeing disk space after dropped database

I'm working on a dev system, and I have been restoring to a database, say "foo", that I'm using for dev purposes. As I'm working through the kinks, I've just been running DROP DATABASE foo. However, I ...
2
votes
2answers
478 views

PostgreSQL: Separate tables vs single table to perserve disk space?

I have 2 tables with the below schemas with equal number of rows. When I run the SELECT relname, relpages FROM pg_class ORDER BY relpages DESC command, they show up as 23GB each even though the data ...
2
votes
1answer
442 views

What are all the reasons/possibilities that may fail to release disk space occupied by TEMPORARY table?

We're using PostgreSQL v8.2.3. Ours is a web-based application and we're using pgpool-II v 2.0.1 purely for connection pooling (we don't use other features of pgpool like Replication, Load Balancing, ...
4
votes
2answers
447 views

Index Generation in Postgres

We have a database with a single table made up of around 700 million entries. We update the database by adding new entries on a server then transfer the server to the production server using pg_dump: ...
7
votes
1answer
879 views

PostgreSQL: Disk space not released after TRUNCATE

I haveTRUNCATEd a huge (~120Gb) table called files: TRUNCATE files; VACUUM FULL files; The table size is 0, but no disk space was released. Any ideas how to reclaim my lost disk space? UPDATE: The ...