SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Literal \'SLEEP #6 TEST\'
    Function sleepEachRow (children 1)
     ExpressionList (children 1)
      Literal Float64_0.001
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier sleep_view
   Literal UInt64_10
 Identifier Null