Error in Join Rows (cartesian product) when mixing a field from concatenated lines

There are an error always when you try to merge a field that came from joined lines (Memory Group By).
The message is: "There was a data type error: the data type of java.lang.StringBuilder object..."

I'm using PDI 4.4.0 / Win7.

This error didn't happened on previous versions of PDI.

The ktr file that emulate this error is attached.

Attached Files

• Join Cartesian Error.ktr (11.9 KB)