Advantages of PARQUET FILE FORMAT in Apache Spark | Data Engineer Interview Questions #interview

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Parquet is columnar based file format which stores the metadata along with the original data. i.e. MIN MAX values of the different columns in that file. During Read operation it checks the metadata and avoids scanning entire file that are irrelevant. Also by default it comes with Snappy compression which saves good amount of storage space.

Nnirvana
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See first of all parquet is not just columnar file format, it's hybrid file format which data are group into row group then stored columnar

PamTiwari