Missing doc for RegisteredLookup DimensionSpecs?

I found doc for Lookup DimensionSpecs in drui.io/docs/latest/querying/dimensionspecs.html, but not for RegisteredLookup

[josephglanville]

It's documented but poorly.
Basically instead of using lookup with the lookup extraction definition you specify name as the name of a registered lookup.
The 2 options are mutually exclusive, if name is specified then the LookupReferencesManager will be called to build the extraction function, otherwise lookup is used.
The language on that page isn't great, if I have some time I might try make it clearer.
It should also be more clear how to use them on this page too: http://druid.io/docs/latest/querying/lookups.html

[gianm]

Good point. @QubitPi, @josephglanville, are either of you interested in updating the docs to be clearer?

@josephglanville , @gianm Thank you for the update. My team uses registered lookup and I have experience developing Druid extensions on top of it. I can find some time as soon as possible to update the doc.

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This issue has been marked as stale due to 280 days of inactivity. It will be closed in 4 weeks if no further activity occurs. If this issue is still relevant, please simply write any comment. Even if closed, you can still revive the issue at any time or discuss it on the dev@druid.apache.org list. Thank you for your contributions.

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