If a long running query on the standby influences the primary, that means that you have "hot_standby_feedback" set to "on". Set it to "off".
Will the setting up of "hot_standby_feedback" value to OFF will cause the reader instance to give incorrect query results or unexpected query failure which will be potential inconsistency between the writer and reader instance, as because those XID's can be removed/cleaned by the writer node even if its being read by the reader instance query. And it can have more replication lag. So I'm wondering , if this setup is advisable one?
