TOAST Table / Dead Tuples / Free Pages - Mailing list pgsql-general

From Shenavai, Manuel
Subject TOAST Table / Dead Tuples / Free Pages
Date
Msg-id AM9PR02MB7410F60E0B73567795B4D034E8C12@AM9PR02MB7410.eurprd02.prod.outlook.com
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Responses Re: TOAST Table / Dead Tuples / Free Pages
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Hi everyone,

 

I created a simple scenario to understand the handling of TOASTs: There is an empty database with a single table and record. The single record gets updated multiple times with 10MB (bytea column). I can see that the table/toasttable size is growing (500MB).

 

Now I tried to find a way to get the DB size down again (it should be around 10MB instead of 500MB). I don’t want to use VACUUM FULL due to the exclusive lock.

 

Is there any way to remove the dead tuples and free the pages?

 

Thanks in advance &

Best regards,

Manuel

 

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