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Re: ERROR could not access transaction/Could not open filepg_commit_ts - Mailing list pgsql-general

From Alvaro Herrera
Subject Re: ERROR could not access transaction/Could not open filepg_commit_ts
Date
Msg-id 20180309184052.myncevkzh2iivbnt@alvherre.pgsql
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In response to Re: ERROR could not access transaction/Could not open file pg_commit_ts  (Jeremy Finzel <finzelj@gmail.com>)
Responses Re: ERROR could not access transaction/Could not open file pg_commit_ts  (Jerry Sievers <gsievers19@comcast.net>)
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Jeremy Finzel wrote:

> UPDATE: what is actually failing is a call to
> pg_xact_commit_timestamp(xmin) on a given table under the view.  We still
> think we must have some corruption though with pg_commit_ts.

This is not a valid query, because the xmin may belong to a frozen
tuple.  pg_commit_ts does not keep data forever; old files are removed.
Anything older than datfrozenxid could return that error.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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