public class ScalarNullAndCol extends ColAndCol
childExpressions, inputColumnNum, inputDataTypePhysicalVariations, inputTypeInfos, LOG, outputColumnNum, outputDataTypePhysicalVariation, outputTypeInfo
Constructor and Description |
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ScalarNullAndCol() |
ScalarNullAndCol(ConstantVectorExpression expression,
int colNum,
int outputColumnNum) |
Modifier and Type | Method and Description |
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void |
evaluate(VectorizedRowBatch batch)
This is the primary method to implement expression logic.
|
VectorExpressionDescriptor.Descriptor |
getDescriptor() |
String |
vectorExpressionParameters() |
doEvaluate
displayArrayOfUtf8ByteArrays, displayUtf8Bytes, doTransientInit, doTransientInit, evaluateChildren, getChildExpressions, getColumnParamString, getDoubleValueParamString, getInputDataTypePhysicalVariations, getInputTypeInfos, getLongValueParamString, getOutputColumnNum, getOutputColumnVectorType, getOutputDataTypePhysicalVariation, getOutputTypeInfo, getParamTypeString, getTypeName, init, setChildExpressions, setInputDataTypePhysicalVariations, setInputTypeInfos, setOutputDataTypePhysicalVariation, setOutputTypeInfo, supportsCheckedExecution, toString, transientInit
public ScalarNullAndCol(ConstantVectorExpression expression, int colNum, int outputColumnNum)
public ScalarNullAndCol()
public void evaluate(VectorizedRowBatch batch) throws HiveException
VectorExpression
evaluate
in class ColAndCol
HiveException
public String vectorExpressionParameters()
vectorExpressionParameters
in class ColAndCol
public VectorExpressionDescriptor.Descriptor getDescriptor()
getDescriptor
in class ColAndCol
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