Get'er done !

sidwelle

<div>
Thank you, that's what I needed to know.<br />
The size of the DB has gotten out of control. So if we do decide to run 'Vacuum Full' it may only to get the DB down to a manageable size, &nbsp;then just let regular vacuum cleanup the deleted records.<br />
<br />
Thanks
</div>


Thank you, that's what I needed to know.
The size of the DB has gotten out of control. So if we do decide to run 'Vacuum Full' it may only to get the DB down to a manageable size,  then just let regular vacuum cleanup the deleted records.

Thanks

<div>
<div class="content wysiwyg-content">
PostgreSQL &nbsp;Vacuum:<br />
<br />
•SELECT version(); &nbsp; --PostgreSQL 9.4.9<br />
•Currently we have vacuum enabled with conservative setting of %20.<br />
<br />
1. &nbsp; The language on the support sites talks about the tables of the Postgress DB being held in individual files ?<br />
&nbsp;If we were to issue a 'vacuum full' command, would the recovery process re-write each table 1 at a time and 0 out the previous table ?<br />
&nbsp;How much extra space do we need to have available to issue 'vacuum full' and not run out of disk space ? (At least as much as the largest table ? or the whole D.B. ?)<br />
<br />
2. &nbsp;Can we call 'Vacuum Full' and specify a particular table, we only <u><b>that</b></u> table get locked ?<br />
<br />
3. &nbsp; &nbsp;Can 'vacuum full' be cancelled once called if it is taking too long and we need to get production back up and running on that table ?
</div>
</div>


PostgreSQL  Vacuum:

•SELECT version();   --PostgreSQL 9.4.9
•Currently we have vacuum enabled with conservative setting of %20.

1.   The language on the support sites talks about the tables of the Postgress DB being held in individual files ?
 If we were to issue a 'vacuum full' command, would the recovery process re-write each table 1 at a time and 0 out the previous table ?
 How much extra space do we need to have available to issue 'vacuum full' and not run out of disk space ? (At least as much as the largest table ? or the whole D.B. ?)

2.  Can we call 'Vacuum Full' and specify a particular table, we only that table get locked ?

3.    Can 'vacuum full' be cancelled once called if it is taking too long and we need to get production back up and running on that table ?

Need to recover space from production PostgreSQL DB

PostgreSQL is an object-relational database management system with an emphasis on extensibility and standards-compliance. As a database server, its primary function is to store data securely, supporting best practices, and to allow for retrieval at the request of other software applications. PostgreSQL implements the majority of the SQL2011 standard, is ACID-compliant and transactional using multiversion concurrency control (MVCC), and handles complex SQL queries using many indexing methods that are not available in other databases. It is cross-platform and runs on many operating systems including Linux, FreeBSD, OS X, Solaris, and Microsoft Windows.

PostgreSQL

Databases are organized collections of data, most commonly accessed through management systems including schemas, tables, queries and processes that allow users to enter and manipulate the information or utilize it in other fashions, such as with web applications or for reporting purposes.