CreateQuery mv (children 4)
 Identifier mv
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration b (children 1)
    DataType String
   ColumnDeclaration a (children 1)
    DataType UInt8
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Identifier d (alias b)
     Identifier c (alias a)
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier test2
 ViewTargets
