Consider the script:
-- Cleanup.
os.execute('rm 00*')
box.cfg{}
box.schema.space.create('test')
box.space.test:create_index('pk')
box.space.test:create_index('sk', {type = 'rtree', parts = {2, 'array'}})
box.space.test.index.sk:select({1, 2}, {after = {1, {1, 2}}})
Result:
Assertion failed: (0), function tuple_compare_field, file tuple_compare.cc, line 535.
The reason is we trying to compare position and key on position validation, and array comparison is not supported.