Re: tracking commit timestamps

On 4 December 2014 at 03:08, Fujii Masao <masao.fujii@gmail.com> wrote:

> #1. set up and start the master and standby servers with
> track_commit_timestamp disabled
> #2. enable track_commit_timestamp in the master and restart the master
> #3. run some write transactions
> #4. enable track_commit_timestamp in the standby and restart the standby
> #5. execute "select pg_xact_commit_timestamp('1000'::xid)" in the standby

I'm not sure what step4 is supposed to do?

Surely if steps 1-3 generate any WAL then the standby should replay
it, whether or not track_commit_timestamp is enabled.

So what effect does setting that parameter on the standby?

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