Package org.apache.druid.segment.projections

Interface Projections.PhysicalColumnChecker

Enclosing class:

Projections

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface Projections.PhysicalColumnChecker

Returns true if column is defined in AggregateProjectionSpec.getGroupingColumns() OR if the column does not exist in the base table. Part of determining if a projection can be used for a given CursorBuildSpec,

See Also:

• Projections.matchAggregateProjection(AggregateProjectionMetadata.Schema, CursorBuildSpec, Interval, PhysicalColumnChecker)

Method Summary

Modifier and Type	Method	Description
boolean	check(String projectionName, String columnName)

Method Details

check

boolean check(String projectionName,
 String columnName)