In SQLite and PosgreSQL, the VACUUM command rebuilds the entire database.
Questions tagged [vacuum]
232 questions
1
vote
1 answer
PostgreSQL 8.3.11 locked; orphaned pg_toast database object recovery
Howdy Slack Overflowvians.
So I came across this PostgreSQL server running 8.3.11 (yeah I know), that was in a locked state with:
ERROR: database is not accepting commands to avoid wraparound data loss in database "postgres"
HINT: Stop the…
Yzmir Ramirez
- 11
- 4
1
vote
3 answers
What is the effect on record size of reordering columns in PostgreSQL?
Since Postgres can only add columns at the end of tables, I end up re-ordering by adding new columns at the end of the table, setting them equal to existing columns, and then dropping the original columns.
So, what does PostgreSQL do with the memory…
Summer
- 2,488
- 3
- 23
- 32
1
vote
1 answer
Vacuum table while creating serial column
I have a very large table in my database and I am trying to create a serial column for it. The problem I think the table is being replicated while I am creating this serial, which there is no room for. First off is my assumption correct? Second is…
Eric Thomas
- 667
- 1
- 8
- 18
1
vote
1 answer
SQLite VACUUM in parallel thread
Try to optimize my application database work.
During database synchronization my application runs a big package of ‘delete’ and ‘insert’ commands inside one transaction. After the transaction ‘COMMIT’ application run ‘VACUUM’ command. VACUUM works…
sinoptic
- 303
- 3
- 12
1
vote
0 answers
Does not android sqlite auto_vacuum truncate whole freelist pages?
I got two mmssms.db files from SAMSUNG Glaxy and Huawei C8812 respectively. Running "PRAGMA auto_vacuum;" on these files will give result "1" both. But when I had opened these files using hex editor, I found that the ptrmap pages in these file have…
abacan
- 11
- 1
1
vote
1 answer
Amazon Product API: Redirect to URL/ send parameter (postback) after Amazon sale
Using Amazon associates I advertise a link. How do I get a parameter back after a sale has been made? (cid)
I want to redirect to a url after the conversion, or to shoot a parameter back to my site, so I can see which clicks converted. How do I do…
Lucy Weatherford
- 5,452
- 16
- 50
- 76
1
vote
4 answers
Vacuum PostgreSQL DB from PHP
I want to vacuum a PostgreSQL database from PHP.
I have tried this:
pg_query($conn,"vacuum analyse;");
How can I tell if this works?
Liam
- 19,819
- 24
- 83
- 123
1
vote
0 answers
install vacuum-cairo on win7 64bit
I am relatively new to Haskell and never installed a package before and I can't figure out how to fix this thing.
So this is what I did:
- I installed Haskell Platform
- I tried to run "cabal install vacuum-cairo"
And this is what i get (the last…
Nocta
- 199
- 2
- 9
1
vote
3 answers
JDBC postgres vacuum timeout
I'm trying to vacuum my Postgres database by running the following SQL instruction within Java:
vacuum verbose analyze
Sometimes it just seems to "hang" is there any clean way to abort the process? I have tried
SET statement_timeout TO XXXX
But I…
deltanovember
- 42,611
- 64
- 162
- 244
1
vote
1 answer
postgresql vacuum analyze many tables
I have a medium-size table (about 15 billion rows) that is made of roughly 200 sub-tables (i.e. each sub-table INHERITS the mother table, and there are constraint CHECKS to optimize the partitioning).
The plpgsql code that loads each table also…
Pierre D
- 24,012
- 7
- 60
- 96
1
vote
2 answers
Wrong (?) Size of PostgreSQL table
I have a table with columns and constraints:
height smallint,
length smallint,
diameter smallint,
volume integer,
idsensorfragments integer,
CONSTRAINT sensorstats_idsensorfragments_fkey FOREIGN KEY (idsensorfragments)
REFERENCES sensorfragments…
user1414355
- 43
- 5
0
votes
1 answer
How can I vaccuum an SQL database? My method for doing so is failing
I have a database with the following method:
public void deleteNote(long rowId) {
mDb.delete(DATABASE_TABLE, KEY_REALROWID + "=" + rowId, null);
int x = (int) rowId;
int y = testCount();
while(x
jersam515
- 657
- 6
- 22
0
votes
0 answers
Python SQLite3 vacuum with and without reseting primary key
There are three SQLite3 tables (Location, Music and History) that need to be vacuumed.
For the first two tables, the Primary Key cannot change, and for the last table (History), the Primary key should change.
The SQLite VACUUM command states…
WinEunuuchs2Unix
- 1,801
- 1
- 17
- 34
0
votes
1 answer
PostgreSQL `set statement_timeout = 0;` doesn't seem to work – why?
I'm connecting to PostgreSQL using command
psql "host=localhost port=6432 dbname=mydatabase user=myuser password=mypassword connect_timeout=5"
and I want to run vacuum analyze but the default statement_timeout for the server is set to 30 minutes,…
Mikko Rantalainen
- 14,132
- 10
- 74
- 112
0
votes
0 answers
Postgresql VACUUM can't remove dead rows
I'm using Postgresql and I have 2 data in table.
The id values of each of the two data are 1 and 5.
Please see the picture above.
I tried VACUUM but dead rows are not cleaned up.
I have already tried the following ways
Check if there are running…
StarCue
- 63
- 9