Hi Haibo, Attached is v7 with the changes we discussed.
Patch 2 now has an inline comment on the && case explaining the outer-bounds approximation and its consistency with existing restriction selectivity. The commit message mentions it as well. Patch 3 uses a separate backend-private header (rangetypes_selfuncs.h) instead of selfuncs.h. Regards, Maxime
v7-0001-Improve-range-join-selectivity-estimation-for.patch
Description: v7-0001-Improve-range-join-selectivity-estimation-for.patch
v7-0002-Improve-multirange-join-selectivity-estimation-fo.patch
Description: v7-0002-Improve-multirange-join-selectivity-estimation-fo.patch
v7-0003-Remove-duplicate-selectivity-functions-between-ra.patch
Description: v7-0003-Remove-duplicate-selectivity-functions-between-ra.patch
