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pgwire is a proxy process which implements the Postgres wire protocol (binary and text) v3 server. Each Postgres client connection corresponds to a single TCP connection to the Insights Core host which should be running s.k_.

pgwire is available for Windows, Linux, or MacOS. It may be deployed on:

  • The client machine alongside the Postgres client (e.g. on your Windows desktop that is running the PowerBI or HeidiSQL client)

  • The server machine alongside the KX Insights Core (e.g. both the q and pgwire processes are on your Linux server with the DbVisualizer client on your MacOS machine).

SQL Integration using pgwire

This section describes how to install pgwire and use it to connect Tableau and Power BI to an KX Insights Core database.

Create a PostgreSQL proxy server

This section details how to use pgwire to create a PostgreSQL proxy server which will enable Tableau and Power BI to connect to an Insights Core database.

  1. Launch q

    1. Set the q process on a port

      q -p 5001
    2. Load s.k_

      \l s.k_
    3. Load the database of your choice

      \l databasefile
  2. Run pgwire and create a proxy PostgreSQL server

    1. Extract kxsql zip file

    2. Start pgwire

      • Open a command prompt and navigate to the subfolder 'w64' of the extracted zip file

      • Run the following command:

      pg listen_port kdb_host kdb_port
      • Navigate to the extracted zip file.

      • Run the following command:

      ./pgmac listen_port kdb_host kdb_port 

      The properties are as follows:

      properties description example
      listen_port local port 5434
      kdb_host IP Address of the kdb+ database
      kdb_port Port of the kdb+ database 5001
      -T Connection timeout (seconds) 0 (default: 0)
      -I Listening interface (default:
      -v verbose logging level, printed to stdout and stderr


      There needs to be a KX Insights Core server running on kdb_host:kdb_port with s.k_ loaded.

      Running the command with the example properties would result in pgwire providing a proxy PostgreSQL server running on port 5434 of the 'localhost' that accesses the Insights Core database available at

Integration with Tableau

This section details how connect Tableau to the PostgreSQL proxy server, created above, allowing Tableau to connect to a kdb+ database.

  1. Download and install the PostgreSQL Driver, as described here

  2. Connect the new PostgreSQL proxy server to Tableau.

    1. Launch the Tableau Desktop
    2. Under Connect, select the PostgreSQL database option
    3. Enter the following properties:

      properties description example
      Server IP address of the proxy PostgreSQL server
      Port Port of the proxy PostgreSQL server 5433
      Database Database to connect to databasefile
      Authentication: Username The username on the KX Insights Core server username
      Authentication: Password If this is not required you still need to enter at least one character password
      Require SSL SSL Encryption Option untick
    4. Select Sign In.

    See PostgreSQL Connector for Tableau for additional details on creating the connection.

Integration with Power BI

This section details how connect Power BI to the PostgreSQL proxy server, created above, allowing Power BI to connect to a kdb+ database.

  1. Launch Power BI.

  2. Select 'PostgreSQL database' in the Connector selection.

  3. Enter the following:

    properties description example
    Server listen_port (as specified in the previous step)
    Database field must not be empty, but is ignored by kdb+ proxy PostgreSQL server db
    Data Connectivity mode with Import it does a single retrieval of data and executes all other queries locally. With Direct SQL it goes to the Insights Core for each query. Import or DirectQuery, both are supported

    See PostgreSQL Connector for Power BI for additional details on creating the connection.

  4. Click OK

  5. On the Database screen enter your KX Insights Core credentials:

    properties example
    User name Insights Core User Name
    Password Insights Core Password
    level Leave as default

    See here] for how to set the username and password for Insights Core