MindsDB DBT adapter

The dbt-mindsdb package allows dbt to connect to MindsDB.

Installation

pip install dbt-mindsdb

Configurations

Basic profile.yml for connecting to MindsDB:

mindsdb:
  outputs:
    dev:
      host: '127.0.0.1'
      password: ''
      port: 47335
      database: 'mindsdb'
      project: 'my_project'
      # schema: 'my_project'
      type: mindsdb
      username: 'mindsdb'
  target: dev

Key	Required	Description	Example
type	✔️	The specific adapter to use	mindsdb
host	✔️	The MindsDB (hostname) to connect to	cloud.mindsdb.com
port	✔️	The port to use	3306 or 47335
schema	✔️	Specify the schema (project) to build models into	The MindsDB datasource
username	✔️	The username to use to connect to the server	mindsdb or mindsdb cloud user
password	✔️	The password to use for authenticating to the server	`pass

Usage

• Create dbt project, choose mindsdb database and set up connection

    dbt init <project_name>

• create a integration with "integration" materialization:

    {{
    config(
      materialized='integration',
      engine='trino',
      parameters={
        "user": env_var('TRINO_USER'),
        "auth": "basic",
        "http_scheme": "https",
        "port": 443,
        "password": env_var('TRINO_PASSWORD'),
        "host": "trino.company.com",
        "catalog": "hive",
        "schema": "photorep_schema",
        "with": "with (transactional = true)"
      }
    )
    }}

• To create predictor add dbt model with "predictor" materialization: Name of the model is used as name of predictor. Parameters:
  • integration - name of used integration to get data from and save result to. In has to be created in mindsdb beforehand
  • predict - field for prediction
  • predict_alias [optional] - alias for predicted field
  • using [optional] - options for configure trained model

    {{
        config(
            materialized='predictor',
            integration='photorep',
            predict='name',
            predict_alias='name',
            using={
                'encoders.location.module': 'CategoricalAutoEncoder',
                'encoders.rental_price.module': 'NumericEncoder'
            }
        )
    }}
      select * from stores

• Other paramaters for time-series predictor:

  • order_by - column that the time series will be order by.
  • group_by - rows that make a partition
  • window - the number [int] of rows to "look back" into when making a prediction
  • horizon - keyword specifies the number of future predictions, default value is 1

• To apply predictor add dbt model with "table" materialization. It creates or replaces table in selected integration with results of predictor. Name of the model is used as name of the table to store prediction results. If you need to specify schema you can do it with dot separator: schema_name.table_name.sql
  Parameters:

  • integration - name of used integration to get data from and save result to. In has to be created in mindsdb beforehand

    {{ config(materialized='table', integration='int1') }}
        select a, bc from ddd JOIN TEST_PREDICTOR_NAME where name > LATEST

Notes: predictor_name has been removed. Instead it must be set explicitly in JOIN part of the model

Testing

• Install dev requirements

  pip install -r dev_requirements.txt

• Run pytest

  python -m pytest tests/