Data & Infrastructure
Web Scraping Data Pipelines: Schema Validation, De-duplication & DB Loading
Design resilient ETL scraping pipelines with Pydantic validation, hash-based de-duplication, and idempotent PostgreSQL upserts.
3 min
Idempotent Database Loading with SQL Upsert
Ensure scraped records do not create duplicates on repeated runs by using unique constraints and `ON CONFLICT (source_url) DO UPDATE` clauses.