CreateQuery tab (children 3)
 Identifier tab
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration col (children 2)
    DataType Tuple (children 1)
     ExpressionList (children 2)
      DataType Float64
      DataType Float64
    Function STATISTICS (children 1)
     ExpressionList (children 1)
      Function uniq
 Storage definition (children 2)
  Function MergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList
