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Anonymous
Not applicable

Left join many to many not working as expected

Hi All,

Trying to join FROM a table where the join key is repeated to another table where the join key is repeated.  I expect to have rows added to the target table for every matching row in the joining table.  However, it seems that if there is only one distinct join key value in the joining table, it only joins once per line in the target table; no rows are added.  Please help if you can!

Might be better explained with an example:

  A:

  LOAD * INLINE [

    Name, Value

    John, .5

    John, .2   ];

  Left Join(A)

  LOAD * INLINE [

  Name, Value2

  John,10

  John,20  ];

Expected Output:

Name, Value, Value2

  John, .5, 10

  John, .5, 20

  John, .2, 10

  John, .2, 20

Actual Output:

  John, .5, 10

  John, .2, 20

1 Solution

Accepted Solutions
4 Replies
Nicole-Smith

You're doing it right.  When I run your code, it gives me the expected output.  I didn't change your code at all.

Capture.PNG

Anonymous
Not applicable
Author

Strange!  Could it be a version issue?  I'm using v12 SR1.

I'll update to a newer SR and report back.

Anonymous
Not applicable
Author

YEP! Updated to SR5 and it's now working as expected.

Thanks, David