private ScalarExpression GetColumnOrCastColumn(ColumnDescriptor column, string tableName)
{
var columnReference = new ColumnReferenceExpression();
columnReference.MultiPartIdentifier = MultiPartIdentifierBuilder.Get(tableName, column.Name.GetName());
if (column.UnderlyingType == "xml")
{
var cast = new CastCall();
var type = new SqlDataTypeReference();
type.SqlDataTypeOption = SqlDataTypeOption.NVarChar;
type.Parameters.Add(new MaxLiteral());
cast.DataType = type;
cast.Parameter = columnReference;
return(cast);
}
return(columnReference);
}
public override void Visit(CastCall node) { this.action(node); }
public override void ExplicitVisit(CastCall node)
{
base.ExplicitVisit(node);
ReplaceExpression(node, n => n.Parameter);
}
public override void ExplicitVisit(CastCall fragment)
{
_fragments.Add(fragment);
}
private ScalarExpression GetColumnOrCastColumn(ColumnDescriptor column, string tableName)
{
var columnReference = new ColumnReferenceExpression();
columnReference.MultiPartIdentifier = MultiPartIdentifierBuilder.Get(tableName, column.Name.GetName());
if (column.UnderlyingType == "xml")
{
var cast = new CastCall();
var type = new SqlDataTypeReference();
type.SqlDataTypeOption = SqlDataTypeOption.NVarChar;
type.Parameters.Add(new MaxLiteral());
cast.DataType = type;
cast.Parameter = columnReference;
return cast;
}
return columnReference;
}
public override void Visit(CastCall node)
{
FindColumnReferences(node);
}
public override void Visit(CastCall node)
{
VisitChildren(node);
}
