SQLAlchemy Dremio

A SQLAlchemy dialect for Dremio via ODBC and Flight interfaces.

• Installation
  • Pre-Requisites
• Usage
  • ODBC
  • Arrow Flight
• Testing
• Superset Integration

Installation

pip install sqlalchemy_dremio

Pre-Requisites

Mac OS X:

• Unix ODBC: (brew install unixodbc)
• Dremio ODBC Driver (https://download.dremio.com/odbc-driver/DremioODBC-LATEST.dmg)

CentOS/RHEL:

• Unix ODBC (sudo yum apt-get install -y unixODBC unixODBC-devel)
• PyODBC (pip install pyodbc)
• Dremio ODBC Driver (https://download.dremio.com/odbc-driver/dremio-odbc-LATEST.x86_64.rpm)

Debian:

• Unix ODBC (sudo apt install -y unixodbc unixodbc-dev)

• PyODBC (pip install pyodbc)

• Dremio ODBC Driver (https://download.dremio.com/odbc-driver/dremio-odbc-LATEST.x86_64.rpm)

  • Use alien to convert it into deb and then install it.

Usage

ODBC

Connection String example: dremio://user:password@host:port/dremio;SSL=0

You can specify other ODBC parameters seperated by semi colon.

Arrow Flight

- This is experiemental. Not recommended for production usage.

Connection String example: dremio+flight://user:password@host:port/dremio

Refer https://github.com/dremio-hub/dremio-flight-connector for configuring flight endpoint in Dremio.

Testing

Set the environment variable DREMIO_CONNECTION_STRING:

Windows: setx DREMIO_CONNECTION_URL "dremio://dremio:dremio123@localhost:31010/dremio"

Linux: export DREMIO_CONNECTION_URL="dremio://dremio:dremio123@localhost:31010/dremio"

And then run:

py.test test

Superset Integration

This SQLAlchemy can be used for connecting Dremio with Superset. Please check superset website for more instructions on the setup.