Pavel Parkhomenko created SPARK-29004:
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Summary: DataFrameWriter.save does not work with bucketBy [and
sortBy]
Key: SPARK-29004
URL: https://issues.apache.org/jira/browse/SPARK-29004
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.4.4
Reporter: Pavel Parkhomenko
bucketBy (and sortBy) does not work in DataFrameWriter at least for JSON (seems
like it does not work for all file-based data sources) despite the
documentation:
{noformat}
This is applicable for all file-based data sources (e.g. Parquet, JSON)
starting with Spark 2.1.0.{noformat}
https://spark.apache.org/docs/latest/api/scala/index.html#org.apache.spark.sql.DataFrameWriter@bucketBy(numBuckets:Int,colName:String,colNames:String*):org.apache.spark.sql.DataFrameWriter[T]
Probably issue is here:
https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/DataFrameWriter.scala#L253
Or documentation is wrong and bucketBy is not supported for file based sources.
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