Is there a way to index a DFF Attribute?

Summary:

Our solution calls for use of DFF attributes to capture data from boundary applications that should be used as parameters and filtering in BIP/OTBI reports and as search criteria on some of the UAs. Due to a very high data volumes, we are reluctant to use DFF attributes as filtering options without indexing these fields first. Is there an option to create an index on a DFF attribute?

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This is applicable to multiple modules (AP, AR, PPM).

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