public class RankAggFunction extends RankLikeAggFunctionBase
lastValues, orderKeyTypes, sequence
Constructor and Description |
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RankAggFunction(LogicalType[] orderKeyTypes) |
Modifier and Type | Method and Description |
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Expression[] |
accumulateExpressions()
Expressions for accumulating the mutable aggregation buffer based on an input row.
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UnresolvedReferenceExpression[] |
aggBufferAttributes()
All fields of the aggregate buffer.
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DataType[] |
getAggBufferTypes()
All types of the aggregate buffer.
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Expression[] |
initialValuesExpressions()
Expressions for initializing empty aggregation buffers.
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generateInitLiteral, getResultType, getValueExpression, mergeExpressions, operandCount, orderKeyEqualsExpression, retractExpressions
getKind, getTypeInference, mergeOperand, mergeOperands, operand, operands
close, functionIdentifier, open, toString
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
getRequirements, isDeterministic, supportsConstantFolding
public RankAggFunction(LogicalType[] orderKeyTypes)
public UnresolvedReferenceExpression[] aggBufferAttributes()
DeclarativeAggregateFunction
aggBufferAttributes
in class DeclarativeAggregateFunction
public DataType[] getAggBufferTypes()
DeclarativeAggregateFunction
getAggBufferTypes
in class DeclarativeAggregateFunction
public Expression[] initialValuesExpressions()
DeclarativeAggregateFunction
initialValuesExpressions
in class DeclarativeAggregateFunction
public Expression[] accumulateExpressions()
DeclarativeAggregateFunction
accumulateExpressions
in class DeclarativeAggregateFunction
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