Answer Posted / mustafa@tcs

PDL is used for having dynamic behaviour in graph.

Say if you want to have a dynamic field which is added to
your predefined DML at the time of executing the graph ,you
can define a graph level parameter and can use this
parameter at the time of embedding the DML in output port.

define a parameter named myfield with value "string("|")
name;"

Now use ${mystring} while embedding the dml in out port.

use $substitution or PDL substitution as interpretation
option

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