hyracks-algebricks/hyracks-algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IPartialAggregationTypeComputer.java

package edu.uci.ics.hyracks.algebricks.core.algebra.expressions;

import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;

public interface IPartialAggregationTypeComputer {
    public Object getType(ILogicalExpression expr, IVariableTypeEnvironment env,
            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException;
}