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In Peliqan, go to Connections, find the Data Warehouse tile and copy/paste your connection details: Data warehouse details.png Use these settings in Microsoft Power BI to connect:
  • Connection type: Postgres (default data warehouse type in Peliqan)
  • Server:
  • User name & password: copy / paste from the Data Warehouse Connection tile (see above)
  • Database name: same as the user name
  • SSL: enabled

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Step by step

In Power BI, click on “Get Data” and then “More” or “Get data from another source”. Select PostgreSQL from the list: 1 - MS Power BI select Postgres data warehouse.png Paste the host name from the Peliqan data warehouse, e.g. db.eu.peliqan.io , the database name and click OK: MS Power BI set server and database.png On the next screen, enter the database name from Peliqan and select “DirectQuery”. Note that the database name is the same as the user name (login). On the next screen, enter the login and password from Peliqan: MS Power BI set login and password.png <aside>
☝ When Power BI does not ask for a login and password, go to the Home menu ribbon, click on Transform Data and select “Data source settings” from the drop-down menu. Select the existing datasource and change its credentials, or remove it completely.
Click here for more info. </aside> Select the tables to include in Power BI: Power BI select tables.png You can now build charts in Power BI: MS Power BI build charts.png

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Troubleshooting

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Error “Please install Npgsql version 4.0.10.0 or earlier”

A recent Windows update (August/September 2024) might cause issues for Power BI to connect to Postgres. The Peliqan built-in data warehouse runs on Postgres. You might get the error “Please install Npgsql version 4.0.10.0 or earlier” when doing a Refresh in Power BI Desktop: power bi postgres error.png In that case, please make sure to install the correct version of Npgsql on your Windows computer. Npgsql is the Postgres driver used by Power BI. Download the MSI installer from this URL: https://github.com/npgsql/npgsql/releases/tag/v4.0.10 During install, make sure to install in GAC (Windows Global Assembly Cache): Npgsql install GAC.png After install, reboot your computer ! Once you have rebooted, the Refresh in Power BI Desktop should work again.

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Error on SSL certificate (encryption)

Make sure to set the data source to “Encrypt connections”. Settings > Data sources > Edit permissions > Check the checkbox “Encrypt connections”. Power BI encrypt connection.png

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Error “The remote certificate is invalid according to the validation procedure”

If you receive the error “The remote certificate is invalid according to the validation procedure”, this is because the root certificate used by the Peliqan data warehouse is not installed on your computer. You can verify this under Root Certificates in Certificate Manager certmgr. Following certificate must be present: Go Daddy Root Certificate Authority - G2 Windows will automatically install the certificate when needed, however MDM solutions (Mobile Device Management) might have blocked automatic install of root certificates. This can be checked in the Windows Registry under: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\SystemCertificates\AuthRoot. Check if there is a DWORD DisableRootAutoUpdate. If the value is 1, auto updates are disabled. Change the value to 0 or manually install the certificate. Download the root certificate for the Peliqan data warehouse: peliqan_dwh_root_certificate_godaddy_g2.pem Or download gdroot-g2.crt from Godaddy: https://aboutssl.org/go-daddy-root-certificates/ Make sure the “Intended Purpose” for the roort certificate is set to <All> (Enable all purposes for this certificate), or that Server Authentication is checked. Double click the certificate in Certificate manager > tab Details > button “Edit Properties” > Certificate purposes: Root cert purposes.png If you don’t have sufficient permissions, contact your IT administrator and ask for the above root certificate to be installed.