protected virtual SqlExpression VisitSelection(SqlExpressionSet row)
{
for (int i = 0; i < row.Expressions.Count; ++i)
{
SqlExpression column = row.Expressions[i];
if (i > 0)
{
_builder.Append(", ");
}
VisitColumn(column);
string columnName = null;
if (column is SqlField)
{
columnName = ((SqlField)column).Name;
}
string inferredName = InferName(column, null);
if (columnName == null)
{
columnName = inferredName;
}
if (columnName == null && !_nameMap.TryGetValue(column, out columnName))
{
columnName = "C" + _nameMap.Count;
_nameMap[column] = columnName;
}
if (columnName != inferredName && !String.IsNullOrEmpty(columnName))
{
_builder.Append(" AS ");
WriteName(columnName);
}
}
return(row);
}
protected virtual SqlExpression VisitSelection(SqlExpressionSet row)
{
for(int i = 0; i < row.Expressions.Count; ++i)
{
SqlExpression column = row.Expressions[i];
if (i > 0)
_builder.Append(", ");
VisitColumn(column);
string columnName = null;
if (column is SqlField)
columnName = ((SqlField)column).Name;
string inferredName = InferName(column, null);
if (columnName == null)
columnName = inferredName;
if (columnName == null && !_nameMap.TryGetValue(column, out columnName))
{
columnName = "C" + _nameMap.Count;
_nameMap[column] = columnName;
}
if (columnName != inferredName && !String.IsNullOrEmpty(columnName))
{
_builder.Append(" AS ");
WriteName(columnName);
}
}
return row;
}
protected virtual SqlExpression VisitExprSet(SqlExpressionSet expr)
{
return(expr);
}
protected virtual SqlExpression VisitExprSet(SqlExpressionSet expr)
{
return expr;
}
