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Building the Simplest Semantic Layer with YAML and Python

2025-08-20
Building the Simplest Semantic Layer with YAML and Python

This article demonstrates building a minimal semantic layer using a YAML file and a Python script, querying 20 million NYC taxi records to illustrate its value. It clarifies when a semantic layer is truly beneficial and when it's overkill. The piece contrasts semantic layers with traditional databases, highlighting advantages in data governance, caching, secure access control, and LLM integration.

(motherduck.com)
Development semantic layer