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Explain the Parquet File format in Apache Spark. When is it the best to choose this?
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Answer / Sharad Kumar Omkar
"Parquet is a columnar storage file format optimized for big data analytics, supported by Apache Spark. It stores data columns efficiently, which reduces I/O costs during querying. The Parquet file format shines when dealing with large datasets, as it offers fast read performance and schema evolution."
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