SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function arrayJoin (alias x) (children 1)
     ExpressionList (children 1)
      Literal Array_[UInt64_0, UInt64_1, UInt64_2, UInt64_10]
   ExpressionList (children 1)
    Function quantilesGK (children 2)
     ExpressionList (children 1)
      Identifier x
     ExpressionList (children 4)
      Literal UInt64_100
      Literal Float64_0.5
      Literal Float64_0.4
      Literal Float64_0.1
