SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function ignore (children 1)
     ExpressionList (children 2)
      Function groupArray (children 1)
       ExpressionList (children 1)
        Identifier number
      Literal \'test memory profiler\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_10000000
   Set