Hi All,
I've been noticing that files in the pg_clog directory test to stay
around forever, I know they are used to determine the state of
transaction id's, but according to the docs:
"(However, the urgency of this concern has decreased greatly with the
adoption of a segmented storage method for pg_clog: it is no longer
necessary to keep old pg_clog entries around forever.)"
How does one determine which files are no longer neccessary? Is the
system configured to clear out stale ones during startup/shutdown?
--
Chris Bowlby <chris(at)pgsql(dot)com>
PostgreSQL Inc.