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doc: Add comments to clarify algorithm for `MarkJoin`s

Open jonathanc-n opened this issue 8 months ago • 0 comments

Which issue does this PR close?

  • Closes #16415.

Rationale for this change

The algorithm that is used for mark joins in calculate_indices_by_join_type might be confusing for newer contributors so we should add a comment to clarify.

What changes are included in this PR?

Added comments with an example to explain how the algorithm works.

jonathanc-n avatar Jun 18 '25 01:06 jonathanc-n