CreateQuery tab (children 3)
 Identifier tab
 Columns definition (children 2)
  ExpressionList (children 3)
   ColumnDeclaration id (children 1)
    DataType Int32
   ColumnDeclaration v1 (children 1)
    DataType Int32
   ColumnDeclaration v2 (children 1)
    DataType Int32
  ExpressionList (children 1)
   Index (children 2)
    Identifier v1
    Function minmax (children 1)
     ExpressionList
 Storage definition (children 3)
  Function MergeTree
  Identifier id
  Set
