currval has not yet been defined this session, how to get multi-session sequences?

Question

My objective is to get a primary key field automatically inserted when inserting new row in the table.

How to get a sequence going from session to session in Postg

Answer 1

This issue seems to be intermittent , For consistency use CTE to get inserted sequence for current session

WITH inserted AS ( 
         INSERT INTO notifn_main (notifn_dt,stat_id)
     SELECT now(),22 
     FROM notifn 
     RETURNING id )
     SELECT id 
     from inserted INTO tmp_id;