Code no longer compiles in SP08

Question

Hi, the following code compiles fine pre SP08 but will no longer compile?
CREATE INPUT WINDOW pairsMapping SCHEMA (type1 string, type2 string) PRIMARY KEY (type1, type2) KEEP ALL ROWS;
CREATE INPUT WINDOW inputStream SCHEMA (inputType string, inputValue integer) PRIMARY KEY (inputType) KEEP ALL ROWS;
CREATE OUTPUT WINDOW allOfType2 PRIMARY KEY (type1, type2) KEEP ALL ROWS
  AS
  SELECT
  inputStream.*,
  pairsMapping.*
  FROM inputStream INNER JOIN pairsMapping ON pairsMapping.type2 = inputStream.inputType;
CREATE OUTPUT WINDOW allOfType1 PRIMARY KEY (type1, type2) KEEP ALL ROWS
  AS
  SELECT
  inputStream.*,
  pairsMapping.*
  FROM inputStream INNER JOIN pairsMapping ON pairsMapping.type1 = inputStream.inputType;
CREATE OUTPUT WINDOW typePairsAndValues PRIMARY KEY DEDUCED KEEP ALL ROWS
  AS
  SELECT
  allOfType1.inputType Type1Name,
  allOfType1.inputValue Type1Value,
  allOfType2.inputType Type2Name,
  allOfType2.inputValue Type2Value
  FROM allOfType1 INNER JOIN allOfType2 ON allOfType1.type2 = allOfType2.inputType
  GROUP BY allOfType1.inputType;
The error I get is "Element has a cycle in the data flow". What has changed between SP04 and SP08 to cause this behavior?

Answer 1

This sounds like a similar issue I hit in Sp08 when trying to union 2 streams - and it was/is a bug in SP08. Did you try running the project?  In my case, although I got the compiler error message, the project would actually run just fine.  Also, in the union case, the problem has been fixed in the upcoming SP08 patch - but we should check your code to ensure the same fix covers it.