Hi,
After changing
sendTimeLineIsHistoric = state->currTLI == ThisTimeLineID;
to
sendTimeLineIsHistoric = state->currTLI != ThisTimeLineID;
I was facing another issue.
On promotion of a cascaded server ThisTimeLineID in the standby server having logical slot becomes 0.
Then i added a function call to GetStandbyFlushRecPtr in StartLogicalReplication which updates ThisTimeLineID.
After the above two changes timeline following is working.But i'm not sure whether this is correct or not.In any case please someone clarify.
Thanks,
Sanyam Jain