message: made GetColumnName explicit with an exception for not implemented cases
diff: @@ -38,8 +38,10 @@ const string &TableCatalogEntry::GetColumnName(const TableColumnInfo& info) {
  switch (info.column_type) {
  case TableColumnType::GENERATED:
  return generated_columns[info.index].name;
  - default:
  + case TableColumnType::STANDARD:
  return columns[info.index].name;
  + default:
  + throw InternalException("Unsupported TableColumnType");
  }
  }
  