io.prestosql.operator.aggregation

Class ChecksumAggregationFunction

java.lang.Object

io.prestosql.metadata.SqlAggregationFunction

io.prestosql.operator.aggregation.ChecksumAggregationFunction

All Implemented Interfaces:

SqlFunction

public class ChecksumAggregationFunction
extends SqlAggregationFunction

Field Summary

Fields

Modifier and Type	Field and Description
static ChecksumAggregationFunction	CHECKSUM_AGGREGATION
static long	PRIME64

Constructor Summary

Constructors

Constructor and Description
ChecksumAggregationFunction()

Method Summary

Modifier and Type	Method and Description
static void	combine(NullableLongState state, NullableLongState otherState)
String	getDescription()
static void	input(Type type, NullableLongState state, Block block, int position)
static void	output(NullableLongState state, BlockBuilder out)
InternalAggregationFunction	specialize(BoundVariables boundVariables, int arity, TypeManager typeManager, FunctionRegistry functionRegistry)

Methods inherited from class io.prestosql.metadata.SqlAggregationFunction

createFunctionByAnnotations, createFunctionsByAnnotations, getSignature, isDeterministic, isHidden

Methods inherited from class java.lang.Object

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

Field Detail

CHECKSUM_AGGREGATION

public static final ChecksumAggregationFunction CHECKSUM_AGGREGATION

PRIME64

public static final long PRIME64

See Also:

Constant Field Values

Constructor Detail

ChecksumAggregationFunction

public ChecksumAggregationFunction()

Method Detail

getDescription

public String getDescription()

specialize

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

Specified by:

specialize in class SqlAggregationFunction

input

public static void input(Type type,
                         NullableLongState state,
                         Block block,
                         int position)

combine

public static void combine(NullableLongState state,
                           NullableLongState otherState)

output

public static void output(NullableLongState state,
                          BlockBuilder out)