Thanks to visit codestin.com
Credit goes to postgrespro.com

Request a Demo
Home   >   mailing lists

is cachedFetchXid ever invalidated? - Mailing list pgsql-hackers

From Jeff Davis
Subject is cachedFetchXid ever invalidated?
Date
Msg-id [email protected]
Whole thread Raw
Responses Re: is cachedFetchXid ever invalidated?
Re: is cachedFetchXid ever invalidated?
List pgsql-hackers
Tree view 
I can't see any place that "cachedFetchXid" is ever invalidated.
Shouldn't it be invalidated before transaction ID wraparound?

It's difficult to construct a test case to show whether this is a
problem or not, but I couldn't find how this is solved in the code. My
understanding is that, before truncating the clog, we need to make sure
that there are no references to any transaction IDs that would be cut
off.

Regards,Jeff Davis

pgsql-hackers by date:

Previous
From: Jim Nasby
Date:
Subject: Re: Proposal: First step towards Intelligent, integrateddatabase
Next
From: [email protected]
Date:
Subject: Re: Proposal: First step towards Intelligent, integrateddatabase