RE: vacuum full

[Ian Dauncey <Ian.Dauncey@xxxxxxxxxxxxxx>]

Morning.

 

Thanks for all the replies.

 

What I did to remove these files was to backup of the DB, drop the DB and then I restored the DB.

 

Regards

Ian

 

 

From: Vijaykumar Jain <vijaykumarjain.github@xxxxxxxxx>
Sent: Monday, 30 August 2021 20:06
To: pgsql-general <pgsql-general@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: vacuum full

 

External email - treat with caution

On Mon, 30 Aug 2021 at 23:12, Vijaykumar Jain <vijaykumarjain.github@xxxxxxxxx> wrote:

Just keeping it in a separate email, incase this is thrashed down.

vacuum full has a lot of problem stories, not just because the db gets locked, but also because it is mostly (mis)used when there are space issues.

 

 

ok ignore. 

I think querying the disk for available space may be shell access from the client, a security issue.

Also, a 10GB table with all dead tuples is 100% bloat, and would not really need additional space for table rebuilds.

I think we can just put out some queries like bloat estimation  of relations, to get an idea of wasted space and used space

and estimate based on that on how much would be taken up from the disk before being cleaned up.

 

ref queries: PostgresQL Automating VACUUM FULL for bloated tables - Stack Overflow

 

 

 

--

Thanks,

Vijay

Mumbai, India

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