Postgresql pg_profile getting error while creating snapshot - postgresql

Question

I am referring https://github.com/zubkov-andrei/pg_profile for generating awr like report.
Steps which I have followed are as below :
1) Enabled below parameters inside postgresql.conf (located inside D:\Program Files\PostgreSQL\9.6\data)
track_activities = on
track_counts = on
track_io_timing = on
track_functions = on
shared_preload_libraries = 'pg_stat_statements'
pg_stat_statements.max = 1000
pg_stat_statements.track = 'top'
pg_stat_statements.save = off
pg_profile.topn = 20
pg_profile.retention = 7
2) Manually copied all the file beginning with pg_profile to D:\Program Files\PostgreSQL\9.6\share\extension
3) From pgAdmin4 console executed below commands successfully
CREATE EXTENSION dblink;
CREATE EXTENSION pg_stat_statements;
CREATE EXTENSION pg_profile;
4) To see which node is already present I executed SELECT * from node_show();
which resulted in
node_name as local
connstr as dbname=postgres port=5432
enabled as true
5) To create a snapshot I executed SELECT * from snapshot('local');
but getting below error
ERROR: could not establish connection
DETAIL: fe_sendauth: no password supplied
CONTEXT: SQL statement "SELECT dblink_connect('node_connection',node_connstr)"
PL/pgSQL function snapshot(integer) line 38 at PERFORM
PL/pgSQL function snapshot(name) line 9 at RETURN
SQL state: 08001
Once I am able to generate multiple snapshot then I guess I should be able to generate report.

Answer 1

just use SELECT * from snapshot()
look at the code of the function. It calls the other one with node as parameter.