public class DatasetOperationPreview extends DatasetPreview
| Constructor and Description |
|---|
DatasetOperationPreview() |
| Modifier and Type | Method and Description |
|---|---|
java.util.List<ColumnStats> |
extractColumnStats(org.apache.spark.sql.types.StructType schema,
long rows) |
Pair<java.lang.String,java.util.List<java.lang.Long>> |
extractSchema(org.apache.spark.sql.types.StructType schema,
long rows) |
java.lang.Object |
schema(org.apache.spark.sql.Dataset<org.apache.spark.sql.Row> input) |
compact, dimensions, full, typeNamepublic java.lang.Object schema(org.apache.spark.sql.Dataset<org.apache.spark.sql.Row> input)
schema in interface TaskParameterPreview<org.apache.spark.sql.Dataset<org.apache.spark.sql.Row>>schema in class DatasetPreviewpublic Pair<java.lang.String,java.util.List<java.lang.Long>> extractSchema(org.apache.spark.sql.types.StructType schema, long rows)
public java.util.List<ColumnStats> extractColumnStats(org.apache.spark.sql.types.StructType schema, long rows)