[sqlite] sqlite 3.8.X query planner bug with r_tree joins(r_tree utilization not working on joins & cross join has no affect on plan with r_tree joins)?

Hello, We are facing performance regression on queries over r_tree tables with any new 3.8.X sqlite version and we are sure it is connected with new versions of sqlite especially with new query planner and r_tree module. We have distincted by now two bugs: First one: We are convienced that new

[sqlite] version 3.8 query planner doesn't find same or better plan for simple query over rtree tables

Hello , we are facing performance regression in sqlite version 3.8 and higher versions on queries over r-tree tables and are unable to solve them , so we are asking professionals to consider severity of described problem: description is little Littler but , contains everything relevat. we have