sql

Type Members

1. type DataFrame = Dataset[Row]

   

2. case class SampleDataFrameContractImpl(session: SnappySession, frame: SampleDataFrame, logicalPlan: StratifiedSample) extends SampleDataFrameContract with Product with Serializable

   

   Encapsulates a DataFrame created after stratified sampling.

3. final class SamplePartition extends Partition

   

4. final class SampledCachedRDD extends RDD[InternalRow]

   

   Encapsulates an RDD over all the cached samples for a sampled table.

   Encapsulates an RDD over all the cached samples for a sampled table. Parallelizes execution using the hashmap segment configuration on the nodes with each partition handling one or more segments of the hashmap on a node.

5. class SnappyAQPParser extends SnappyParser

   

   Snappy SQL extensions.

   Snappy SQL extensions. Includes:

   Stratified sample tables: 1) ERROR ESTIMATE AVG: error estimate for mean of a column/expression 2) ERROR ESTIMATE SUM: error estimate for sum of a column/expression

6. class SnappyAQPSqlParser extends SnappySqlParser

   

7. type Strategy = SparkStrategy

   

   Annotations

   @DeveloperApi() @Unstable()