private static AlgebraNode PadLeftWithNullsOnRightSide(JoinAlgebraNode node, RowBufferCreationMode rowBufferCreationMode)
{
ComputeScalarAlgebraNode computeScalarAlgebraNode = new ComputeScalarAlgebraNode();
computeScalarAlgebraNode.Input = node.Left;
List<RowBufferEntry> outputList = new List<RowBufferEntry>();
outputList.AddRange(node.Left.OutputList);
List<ComputedValueDefinition> definedValues = new List<ComputedValueDefinition>();
foreach (RowBufferEntry rowBufferEntry in node.Right.OutputList)
{
ComputedValueDefinition definedValue = new ComputedValueDefinition();
if (rowBufferCreationMode == RowBufferCreationMode.KeepExisting)
{
definedValue.Target = rowBufferEntry;
}
else
{
definedValue.Target = new RowBufferEntry(rowBufferEntry.DataType);
}
definedValue.Expression = LiteralExpression.FromTypedNull(rowBufferEntry.DataType);
definedValues.Add(definedValue);
outputList.Add(definedValue.Target);
}
computeScalarAlgebraNode.DefinedValues = definedValues.ToArray();
computeScalarAlgebraNode.OutputList = outputList.ToArray();
return computeScalarAlgebraNode;
}
private static AlgebraNode PadLeftWithNullsOnRightSide(JoinAlgebraNode node, RowBufferCreationMode rowBufferCreationMode)
{
ComputeScalarAlgebraNode computeScalarAlgebraNode = new ComputeScalarAlgebraNode();
computeScalarAlgebraNode.Input = node.Left;
List <RowBufferEntry> outputList = new List <RowBufferEntry>();
outputList.AddRange(node.Left.OutputList);
List <ComputedValueDefinition> definedValues = new List <ComputedValueDefinition>();
foreach (RowBufferEntry rowBufferEntry in node.Right.OutputList)
{
ComputedValueDefinition definedValue = new ComputedValueDefinition();
if (rowBufferCreationMode == RowBufferCreationMode.KeepExisting)
{
definedValue.Target = rowBufferEntry;
}
else
{
definedValue.Target = new RowBufferEntry(rowBufferEntry.DataType);
}
definedValue.Expression = LiteralExpression.FromTypedNull(rowBufferEntry.DataType);
definedValues.Add(definedValue);
outputList.Add(definedValue.Target);
}
computeScalarAlgebraNode.DefinedValues = definedValues.ToArray();
computeScalarAlgebraNode.OutputList = outputList.ToArray();
return(computeScalarAlgebraNode);
}
