CreateQuery mv_2_1 (children 3)
 Identifier mv_2_1
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 3)
     Literal \'2_1\' (alias l)
     Identifier t
     Identifier v
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier ds_1_1
 ViewTargets
