CreateQuery mv_extra_columns_view (children 3)
 Identifier mv_extra_columns_view
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Identifier v1 (alias v)
     Identifier v2 (alias v2)
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier mv_extra_columns_src
 ViewTargets
