CreateQuery v (children 3)
 Identifier v
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration x (children 1)
    DataType UInt32
   ColumnDeclaration v (children 1)
    DataType String
   ColumnDeclaration y (children 1)
    DataType UInt32
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 3)
     Identifier x
     Identifier v
     Literal UInt64_42 (alias y)
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier test
