Reflection Execution Strategy meaning and how to set with API

Guys,

just realized that there is a (new? :thinking: ) reflection configuration: Reflection Execution Strategy:

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How does it exactly works? A raw reflection don’t produce the same number of files depending on the configuration itself (like partitioning)?

And how can I set one or other option via API?

I believe this is covered in the Best Practices guide: https://www.dremio.com/lp/data-reflections-best-practices