Hi, It seems like 'IN' isn't used for description of a function input parameter in the docs unlike 'OUT'. AFAICS this is consistent across the docs except the function pg_freespace. Attaching a tiny patch to remove 'IN' there.
Thoughts? Regards, Bharath Rupireddy.
v1-0001-Remove-IN-from-pg_freespace-docs-for-consistency.patch
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