com.facebook.presto.druid

Class DruidAggregationProjectConverter

java.lang.Object

com.facebook.presto.druid.DruidAggregationProjectConverter

All Implemented Interfaces:

RowExpressionVisitor<DruidExpression,Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection>>

public class DruidAggregationProjectConverter
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected StandardFunctionResolution	standardFunctionResolution
protected TypeManager	typeManager

Constructor Summary

Constructors

Constructor and Description
DruidAggregationProjectConverter(ConnectorSession session, TypeManager typeManager, FunctionMetadataManager functionMetadataManager, StandardFunctionResolution standardFunctionResolution)

Method Summary

Modifier and Type	Method and Description
protected Optional<DruidExpression>	basicCallHandling(CallExpression call, Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)
protected boolean	isImplicitCast(Type inputType, Type resultType)
DruidExpression	visitCall(CallExpression call, Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)
DruidExpression	visitConstant(ConstantExpression literal, Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)
DruidExpression	visitInputReference(InputReferenceExpression reference, Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)
DruidExpression	visitLambda(LambdaDefinitionExpression lambda, Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)
DruidExpression	visitSpecialForm(SpecialFormExpression specialForm, Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)
DruidExpression	visitVariableReference(VariableReferenceExpression reference, Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)

Methods inherited from class java.lang.Object

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

Field Detail

typeManager

protected final TypeManager typeManager

standardFunctionResolution

protected final StandardFunctionResolution standardFunctionResolution

Constructor Detail

DruidAggregationProjectConverter

public DruidAggregationProjectConverter(ConnectorSession session,
                                        TypeManager typeManager,
                                        FunctionMetadataManager functionMetadataManager,
                                        StandardFunctionResolution standardFunctionResolution)

Method Detail

visitCall

public DruidExpression visitCall(CallExpression call,
                                 Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)

Specified by:

visitCall in interface RowExpressionVisitor<DruidExpression,Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection>>

visitConstant

public DruidExpression visitConstant(ConstantExpression literal,
                                     Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)

Specified by:

visitConstant in interface RowExpressionVisitor<DruidExpression,Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection>>

visitVariableReference

public DruidExpression visitVariableReference(VariableReferenceExpression reference,
                                              Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)

Specified by:

visitVariableReference in interface RowExpressionVisitor<DruidExpression,Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection>>

visitLambda

public DruidExpression visitLambda(LambdaDefinitionExpression lambda,
                                   Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)

Specified by:

visitLambda in interface RowExpressionVisitor<DruidExpression,Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection>>

isImplicitCast

protected boolean isImplicitCast(Type inputType,
                                 Type resultType)

basicCallHandling

protected Optional<DruidExpression> basicCallHandling(CallExpression call,
                                                      Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)

visitInputReference

public DruidExpression visitInputReference(InputReferenceExpression reference,
                                           Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)

Specified by:

visitInputReference in interface RowExpressionVisitor<DruidExpression,Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection>>

visitSpecialForm

public DruidExpression visitSpecialForm(SpecialFormExpression specialForm,
                                        Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection> context)

Specified by:

visitSpecialForm in interface RowExpressionVisitor<DruidExpression,Map<VariableReferenceExpression,DruidQueryGeneratorContext.Selection>>