Re: No stats after promoting standby?

[Don Seiler <don@xxxxxxxxx>]

On Mon, Dec 4, 2017 at 3:37 PM, Adrien Nayrat <adrien.nayrat@xxxxxxxxxx> wrote:

Stats are deleted after promotion :
" The stats file is deleted at the start of recovery, so stats from primary and
standby will differ; this is considered a feature, not a bug."
https://www.postgresql.org/docs/current/static/hot-standby.html

Or : https://www.postgresql.org/message-id/31781.1508448417%40sss.pgh.pa.us

You have to do an ANALYZE just after promotion.

OK good to know. Interesting point but I think I disagree about the standby having its own stats. Until replication is broken, wouldn't the data be identical to the primary, and so the statistics should be identical as well?

In the meantime I'll know to manually analyze.

Don.

--

Don Seiler
www.seiler.us