vacuum Questions
3
Solved
I'm using a PostgreSQL DB and I would like to start VACUUM FULL using JPA EntityManager.
Version 1
public void doVacuum(){
entityManager.createNativeQuery("VACUUM FULL").executeUpdate()
}
thro...
Spinose asked 27/10, 2017 at 19:59
9
Solved
I am using Python with psycopg2 and I'm trying to run a full VACUUM after a daily operation which inserts several thousand rows. The problem is that when I try to run the VACUUM command within my c...
Bibliofilm asked 19/6, 2009 at 11:26
5
I want to know how to vacuum sqlite database.
I tried a syntax MANUAL VACUUM command for the whole database from command prompt:
$sqlite3 database_name "VACUUM;";
But it's giving error as:
nea...
3
Solved
Well, the question pretty much summarises it. My db activity is very update intensive, and I want to programmatically issue a Vacuum Analyze. However I get an error that says that the query cannot ...
Unamuno asked 14/10, 2010 at 9:49
2
Solved
I've been working on optimizing tables in database. One of our table requires monthly vacuuming because of cleaning up processes.pg_squeeze Table size can get upto 25 GB. As this table is used by p...
Faunia asked 11/2, 2022 at 8:58
2
I had a huge query running on postgres and one of the join tables always did a sequential scan. There is an index on the constraint column and postgres just didn't use it. I ran a VACUUM ANALYZE, a...
Banna asked 16/5, 2016 at 19:24
2
Solved
In PostgreSQL 9.5 I've decided to create a materialized view "effects" and scheduled an hourly concurrent refresh, since I wanted it to be always available:
REFRESH MATERIALIZED VIEW CONCURRENTLY ...
Eccentric asked 20/9, 2018 at 9:7
3
Solved
By design, Core Data does not issue a VACUUM SQL command to its SQLite database(s), as detailed here. I'm creating a Core Data application that'll store, and later delete, large binary files (2-10M...
1
Solved
I inherited a PostgreSQL database in production with one table that is around 250 GB in size. It only has around ten thousand live rows which I estimate to be not more than 20 MB.
The table grew ...
Maymaya asked 4/2, 2020 at 8:52
5
Solved
As referenced by this Firefox bug, what does the act of vacuuming a database accomplish? Is this operation supported by all modern database software, or only certain ones?
Boddie asked 24/1, 2010 at 19:13
2
Solved
How does one enable autovacuum in PostgreSQL? I understand the purpose, I just can't find a simple answer regarding how to enable it.
Endodontics asked 28/10, 2015 at 2:35
1
Solved
I have a sqlite3 database > 34-GB.
When I execute explicit VACUUM command for this db, the procedure takes too long time. So I want to know what happens when I force it to quit VACUUM task.
Is i...
2
Solved
From the PostgreSQL 10.4 manual regarding a full vacuum:
Note that they also temporarily use extra disk space approximately equal to the size of the table, since the old copies of the table and ...
Inquietude asked 16/7, 2018 at 12:6
1
Solved
I have a table in my database which is occupying 161GB hard disk space. Only 5 gb free space is left out of 200Gb harddisk.
The following command shows that my table is consuming 161GB harddisk s...
Cageling asked 6/7, 2018 at 6:51
1
I wanted to utilize the power of index-only scans in Postgres and experimented with one table:
CREATE TABLE dest.contexts
(
id integer NOT NULL,
phrase_id integer NOT NULL,
lang character varyi...
Innocence asked 1/9, 2017 at 16:9
1
Quick question from a PostgreSQL (relative) newb:
We run a batch process that, as its final step, deletes most of the previous batches.
Disk space is a concern, so we need to ensure that PostgreS...
Bennir asked 8/1, 2018 at 15:33
2
Solved
We have a postgres database in Amazon RDS. Initially, we needed to load large amount of data quickly, so autovacuum was turned off according to the best practice suggestion from Amazon. Recently I ...
Elusion asked 21/12, 2017 at 3:41
3
Solved
I have got a:
VACUUM cannot run inside a transaction block
error on SQLWorkbenchJ in Redshift, but I already commit all transactions before this.
Arcuate asked 30/11, 2015 at 8:33
2
Solved
I am running a vacuum on a very large table.
When I run it, it says:
bacula=# VACUUM FULL VERBOSE file_partition_19
bacula-# ;
INFO: vacuuming "public.file_partition_19"
INFO: "file_partition_19"...
Hacksaw asked 18/1, 2017 at 22:47
4
Solved
Reading the Amazon Redshift documentatoin I ran a VACUUM on a certain 400GB table which has never been vacuumed before, in attempt to improve query performance.
Unfortunately, the VACUUM has caused...
Bond asked 16/7, 2014 at 12:37
1
Solved
Recently as entertainment I decided to develop a small project to test the benefits of SQlite with EntityFramework provided by the library System.Data.SQLite.
The application has a data synchroniz...
Betseybetsy asked 30/6, 2015 at 0:29
1
Solved
I am using Postgres 9.4.
I just ran vacuum full. I read about the differences between vacuum and vacuum full and considered a lot if I should run vacuum or vacuum full. As far as I can say, I requ...
Mannuela asked 23/6, 2015 at 17:33
2
Solved
I just want to check that my understanding of these two things is correct. If it's relevant, I am using Postgres 9.4.
I believe that one should vacuum a database when looking to reclaim space fro...
Annal asked 22/6, 2015 at 18:27
1
Using postgresql-9.2,at this moment am finding the tables that have dead_tuples using the following query:
SELECT relname FROM pg_stat_user_tables WHERE n_dead_tup > 0
this will return the tabl...
Voltz asked 13/9, 2014 at 4:59
2
Solved
I am more familiar with PostgreSQL than MySQL. Have encountered wraparound Id failure once with the PostgreSQL db and then understood the importance of vacuuming in the db. Actually, that was such ...
Naoma asked 6/8, 2014 at 6:24
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