Tag: data-quality

All the articles with the tag “data-quality”.

• Data This Week #35

  18 Oct, 2026 · 10 min read

  Why sorted Parquet files don't give DataFusion an ordered scan, point-in-time leak-free graphs on Iceberg, rank-space Hilbert clustering in DuckDB, Netflix's ontology-driven observability, Uber's dependency analysis, Apache Polaris disaster recovery, Redshift data sharing and Iceberg writes, JEV classification, duckxlsx, and debugging data mismatches.

• Data This Week #27

  9 Aug, 2026 · 6 min read

  Safely migrating Iceberg catalogs without moving data, DuckDB's MySQL engine stress-tested at 500 GB, the end of the Hive Metastore era, hands-on S3 Tables evaluation, why dbt tests don't equal data trust, and an ontology+LLM approach to legacy data modernization.

• Data This Week #5

  1 Mar, 2026 · 4 min read

  Spark DAG compilation deep dive, query federation with StarRocks, Pinterest's CDC migration, CyberArk AI with Iceberg, Databricks Zerobus Ingest, and data quality tooling debates.