runtime_version

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Available from dbt v1.11 or with the dbt "Latest" release track.

functions/<filename>.yml

functions:
  - name: <function name>
    config:
      runtime_version: <string> # required for Snowflake and BigQuery; optional and ignored on Databricks

Definition

When creating Python UDFs, specify the Python version to run in runtime_version.

Supported values

• Snowflake: 3.10, 3.11, 3.12, and 3.13
• BigQuery: 3.11
• Databricks: Accepted for compatibility but has no effect. Databricks manages the Python runtime internally, so dbt displays a warning if you set it. Available in dbt-databricks v1.12+.

Example

In this example, we're using the Python version 3.11 for the UDF.

functions/schema.yml

functions:
  - name: is_positive_int
    config:
      runtime_version: "3.11"

Related documentation

• User-defined functions
• Function properties
• Function configurations
• type
• volatility
• entry_point
• packages
• arguments
• returns

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