Single-Node Analytics: DuckDB, Polars, and Arrow
Compare DuckDB, Polars, and Arrow with Parquet queries, null-safe joins, and interchange checks. Separate result correctness from memory and speed claims.
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Apache Arrow
Distinguish Arrow memory buffers from storage encoding, understand IPC exchange, and check the conditions needed for zero-copy access.
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Data Formats: Parquet, ORC, Avro, and Arrow
Learn what each format stores, how readers skip data, and which schema and layout choices change analytical work.