DuckDB Monthly #41: Torsten's 15-week DuckDB internals course, Pete's full-text search walkthrough on a multi-GB email corpus, Mark's GCAT satellite pipeline with H3, plus column-level lineage with duck_lineage and DuckLake v1.0.

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Monthly roundup of DuckDB ecosystem highlights for May 2026. Key items include: Torsten's 15-week University of Tübingen course on DuckDB internals (DiDi), Pete's full-text search walkthrough on a multi-GB email corpus using DuckDB's FTS extension, and Mark's satellite-tracking pipeline converting GCAT TSV data into H3 heatmaps and ZSTD Parquet. Also covered: the duck_lineage extension for automatic column-level data lineage via OpenLineage, DuckDB 1.5.0 'Variegata' release with VARIANT type and CLI improvements, DuckLake v1.0 addressing small-change inefficiencies in lakehouse architectures, and a developer's experience replacing Polars with DuckDB in AWS Lambda workflows.

DuckDB Monthly #41: DuckDB internals course, FTS walkthrough, and a satellite pipeline with H3 + Parquet