Document spatial_partitioning_table_name system property

[findepi]

Document spatial_partitioning_table_name

• what's for
• how it works
• what should be the schema of that table
• how is the table accessed (what user, access control checks, if any)

[findepi]

It seems that spatial_partitioning_table_name was necessary to trigger #6587, so i guess @JamesRTaylor you know all the things that need to be documented.
I will assign you, if you do not mind.

[JamesRTaylor]

@mosabua - probably makes sense to either add a new section under Connectors for Geospatial or add documentation here for spatial joins. Best source of information I've found is this issue. Also found this blog that has a lot of good information. Would be prudent to confirm with @martint that this functionality is all available in Trino. Other background information on spatial joins include these issues:

• Optimize broadcast spatial join prestodb/presto#9890
• Optimize spatial queries prestodb/presto#9834

[palmerj]

Anyone still planning to document this?