Big image tables maintenance - Mailing list pgsql-admin

From still Learner
Subject Big image tables maintenance
Date
Msg-id CAB3gP9JOKratDxJ54X+DR4axeK0k9ZO2wFw2_PiNovknCB8DsQ@mail.gmail.com
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Responses Re: Big image tables maintenance  (Ron <ronljohnsonjr@gmail.com>)
Re: Big image tables maintenance  (Stephen Frost <sfrost@snowman.net>)
List pgsql-admin
Hi ,

I have a 10 TB size table with multiple bytea columns (image & doc)and makes 20TB of DB size. I have a couple of issues to maintain the DB.

1. I Would like to separate the image column from the 10TB size table, place it in a separate schema. The change should not result in any query change in the application.  Is it possible? Doing this it should not affect the performance. 

2. I can't maintain files on File system as the count is huge, so thinking of using any no-sql mostly mongo-DB, is it recommended? Or PostgreSQL itself can handle? 

3. Taking the backup of 20TB data, is big task. Any more feasible solution other than online backup/pg_dump?

Each image retrieval is 
Currently, we are on pg 9.4 and moving to 10.5 soon.
 
Thanks,
GJ.

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