Efficient way to read specific columns from parquet file in spark

0 votes
I was wondering is spark.read.parquet(../parquet file path).select(...) the best way to read subsets of columns in spark from a parquet file? Are there any other options?
Apr 20, 2018 in Apache Spark by Ashish
• 2,650 points
5,882 views

1 answer to this question.

0 votes

As parquet is a column based storage file, so 

val df = spark.read.parquet("fs://path/file.parquet"),load(<parquet>).select(...)


is the best option
answered Apr 20, 2018 by kurt_cobain
• 9,390 points

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