io.druid.sql.calcite.rule

Class GroupByRules

java.lang.Object

io.druid.sql.calcite.rule.GroupByRules

public class GroupByRules
extends Object

Method Summary

Modifier and Type	Method and Description
static Aggregation	translateAggregateCall(PlannerContext plannerContext, RowSignature sourceRowSignature, org.apache.calcite.rex.RexBuilder rexBuilder, org.apache.calcite.rel.core.Project project, org.apache.calcite.rel.core.AggregateCall call, List<Aggregation> existingAggregations, String name) Translate an AggregateCall to Druid equivalents.

Methods inherited from class java.lang.Object

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

Method Detail

translateAggregateCall

public static Aggregation translateAggregateCall(PlannerContext plannerContext,
                                                 RowSignature sourceRowSignature,
                                                 org.apache.calcite.rex.RexBuilder rexBuilder,
                                                 org.apache.calcite.rel.core.Project project,
                                                 org.apache.calcite.rel.core.AggregateCall call,
                                                 List<Aggregation> existingAggregations,
                                                 String name)

Translate an AggregateCall to Druid equivalents.

Returns:

translated aggregation, or null if translation failed.