[HACKERS] No parameter values checking while creating Altersubscription...Connection

Hi,

We usually check connection  parameter values while creating create 
subscription

\\port is WRONG

postgres=# create subscription c1 connection 'port=4000 ' publication pub;
ERROR:  could not connect to the publisher: could not connect to server: 
No such file or directory    Is the server running locally and accepting    connections on Unix domain socket
"/tmp/.s.PGSQL.4000"?
postgres=#

\\when database doesn't exist

postgres=# create subscription c1 connection 'dbname=postgre ' 
publication pub;
ERROR:  could not connect to the publisher: FATAL:  database "postgre" 
does not exist
postgres=#

but such checking is not done at the time of alter subscription .. 
connection

postgres=# alter subscription c1 connection 'port=4000';
ALTER SUBSCRIPTION
postgres=# alter subscription c1 connection 'dbname=cc';
ALTER SUBSCRIPTION

-- 
regards,tushar
EnterpriseDB  https://www.enterprisedb.com/
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