Andrey Sydelov Andrey Sydelov

Why Data Formats Matter More Than You Think

Parquet, ORC, Arrow, Delta, Iceberg, and Hudi — not just file formats, but architectural levers. Storage layout, compression, and schema semantics define how data moves, scales, and fails across distributed systems.

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Andrey Sydelov Andrey Sydelov

4 Types of Analytics That Matter

Explore the 4 types of analytics—descriptive, diagnostic, predictive, prescriptive—and learn how they drive business decisions with real-world examples.

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