[VOTE] add RTree index in table format

[ddupg]

This is the voting thread for adding RTree index to the Lance table format. See PR #5360 for more details.

Also see #5034 for details about RTree implementation, #4482 for more context for past discusions.

Voting Instructions

Please vote by commenting:

• +1 Add RTree Index to the format specification
• 0
• -1 Do not add RTree Index to the format specification because...

[fangbo]

+1 Excellent feature—extremely useful for searching geographic information data

[yanghua]

+1

[zhangyue19921010]

+100 really looking forward to the landing of this feature.

[wojiaodoubao]

+1

[majin1102]

+1 look forward to this advancing feature

[westonpace]

+1 for the proto change (I'll try and review that PR soon). I've been loosely following the discussion and believe we agreed this should be a standard index since plugins aren't yet fully wired up. Going forwards I'm not sure new indexes need to be changes to the lance specification itself (see #5516)

[jackye1995]

+1 sorry for the late vote, looking forward to the next steps!

[jackye1995]

3 +1 bindings votes
4 +1 non-binding votes

And we have passed 1 week, so this vote has passed!