could not connect to server "postgres_someDB"

Category: azure database for postgresql


Aravindmandapaka on Thu, 05 Dec 2019 23:57:57

Working on Azure PostGresSQL, trying to import a table present in another database of postgres from a diferrent database.

bBoth the databases are on same server.

create EXTENSION postgres_fdw;

CREATE SERVER postgresPtDB FOREIGN DATA WRAPPER postgres_fdw OPTIONS (host '', dbname 'Product', port '5432');
CREATE USER MAPPING FOR xxxx SERVER postgres_PtDB OPTIONS (user 'xxxx'password 'dxxxx');
IMPORT FOREIGN SCHEMA rw limit to (abc) FROM SERVER postgres_PtDB INTO rw;
CREATE foreign TABLE "abcde"







SERVER postgres_PtDB;

Till this point all the statements worked perfect and even created table since i can see it if I expand the database.

But, when I do this I see the error could not connect to server "postgres_ptdb"

select*from "abcde"

Any leads is appreciated. Thanks :)



Mike Ubezzi (Azure) on Fri, 06 Dec 2019 03:38:55

Hi Aravind,

I see that the postgres_ptdb extension v. 1.0 is supported: PostgreSQL extensions in Azure Database for PostgreSQL - Single Server

But what I would like to verify is if you have the network access from Azure services enabled: Connecting from Azure

There should be the ability to enable Azure services to connect to your PostgreSQL instance. Please verify that this is enabled.


Aravindmandapaka on Fri, 06 Dec 2019 14:41:35

Hello Mike, 

Yes, The access has been enabled already and still I had encountered the above problem.

The server I am connecting to is something like this ""



Mike Ubezzi (Azure) on Mon, 09 Dec 2019 19:11:32

Could you try something for me. Please do the following:

  1. Perform an nslookup (from a cmd prompt)
  2. Take the resulting IP Address and add that to the Allow List

If the above does not resolve this issue, I can have this issue investigated further by enabling a one-time incident ticket if you currently do not have an Azure Support Plan.



Mike Ubezzi (Azure) on Fri, 13 Dec 2019 17:51:28

Please let me know if you need further assistance for this issue.



Kalyan Chanumolu-MSFT on Fri, 20 Dec 2019 02:38:55

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