SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 5)
    Function count (children 1)
     ExpressionList
    Function min (children 1)
     ExpressionList (children 1)
      Identifier x
    Function max (children 1)
     ExpressionList (children 1)
      Identifier x
    Function sum (children 1)
     ExpressionList (children 1)
      Identifier x
    Function uniqExact (children 1)
     ExpressionList (children 1)
      Identifier x
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 2)
      TableIdentifier sample_00276
      SampleRatio 1 / 2
