Create a "Spatial Query Performance" page

[rmloveland]

Richard Loveland (rmloveland) commented:

Because we are a completely different architecture than other DBs (scale-out vs. single node), we will need to give users info about what performance to expect on spatial queries, best practices, etc.

For example, it would be good to cover (at least) the following:

• Set expectations on avg. performance, if possible
• What types of queries work well vs. don't
• General considerations of scale-out vs. single-node and effect on performance
• Need to write stuff here about our architecture, underlying ordered map, spatial indexes (R-Trees vs. Space-filling curves/quadtrees)
• Def need a whole section with details about our indexing. Perhaps a shared include with something on the 'Indexes' page as well
• Link to 'Troubleshooting Spatial Queries' page since performance and troubleshooting are related

Jira Issue: DOC-618