io.prestosql.operator.scalar

Class ArrayReduceFunction

java.lang.Object

io.prestosql.metadata.SqlScalarFunction

io.prestosql.operator.scalar.ArrayReduceFunction

All Implemented Interfaces:

SqlFunction

public final class ArrayReduceFunction
extends SqlScalarFunction

Field Summary

Fields

Modifier and Type	Field and Description
static ArrayReduceFunction	ARRAY_REDUCE_FUNCTION

Method Summary

Modifier and Type	Method and Description
String	getDescription()
boolean	isDeterministic()
boolean	isHidden()
static Object	reduce(Type inputType, Block block, Object initialIntermediateValue, BinaryFunctionInterface inputFunction, UnaryFunctionInterface outputFunction)
ScalarFunctionImplementation	specialize(BoundVariables boundVariables, int arity, TypeManager typeManager, FunctionRegistry functionRegistry)

Methods inherited from class io.prestosql.metadata.SqlScalarFunction

builder, getSignature

Methods inherited from class java.lang.Object

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

Field Detail

ARRAY_REDUCE_FUNCTION

public static final ArrayReduceFunction ARRAY_REDUCE_FUNCTION

Method Detail

isHidden

public boolean isHidden()

isDeterministic

public boolean isDeterministic()

getDescription

public String getDescription()

specialize

public ScalarFunctionImplementation specialize(BoundVariables boundVariables,
                                               int arity,
                                               TypeManager typeManager,
                                               FunctionRegistry functionRegistry)

Specified by:

specialize in class SqlScalarFunction

reduce

public static Object reduce(Type inputType,
                            Block block,
                            Object initialIntermediateValue,
                            BinaryFunctionInterface inputFunction,
                            UnaryFunctionInterface outputFunction)