SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function cosineDistance (children 1)
     ExpressionList (children 2)
      Literal Tuple_(UInt64_1, UInt64_1)
      Function tuple (children 1)
       ExpressionList (children 2)
        Function toNullable (children 1)
         ExpressionList (children 1)
          Literal Float64_0.5
        Literal Float64_0.1