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What does it mean by Columnar Storage Format?

Question Posted / akash mishra


What does it mean by Columnar Storage Format?..

Answer / Alok Kumar Chaudhari

In the context of Apache Spark, Columnar Storage Format is a method for organizing data in a table structure where all columns are stored together. This format is advantageous because it can significantly reduce I/O operations when querying specific columns, leading to improved performance.

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