MARS

Specifies a MARS variable into which data is to be written after retrieval or manipulation. Its main use is with the MARS compute verb.

fieldset=<fieldset_name>

It is a name used to represent a temporary collection of fields which can be manipulated with further MARS requests. MARS uses temporary storage to hold fieldsets. Once MARS finishes its execution, this storage is removed, thus the data is lost if it has not been saved with a write request.

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