Package org.apache.druid.sql.calcite.planner

Class QueryUtils

java.lang.Object

org.apache.druid.sql.calcite.planner.QueryUtils

public class QueryUtils
extends Object

Utility class for queries

Method Summary

Modifier and Type	Method	Description
static ColumnMappings	buildColumnMappings(List<Map.Entry<Integer,String>> fieldMapping, RowSignature rowSignature)	Builds the mappings for queryColumn to outputColumn.
static JoinAlgorithm	getJoinAlgorithm(org.apache.calcite.rel.core.Join join, PlannerContext plannerContext)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

buildColumnMappings

public static ColumnMappings buildColumnMappings(List<Map.Entry<Integer,String>> fieldMapping,
 RowSignature rowSignature)

Builds the mappings for queryColumn to outputColumn.

Returns:

Mappings for queryColumn to outputColumn

getJoinAlgorithm

public static JoinAlgorithm getJoinAlgorithm(org.apache.calcite.rel.core.Join join,
 PlannerContext plannerContext)