The current stitch function is a 'dense' stitch function. If some keys are missing it will stitch things as close as is possible (it stitches based on key order rather than the value/true extent of keys). It assumes that every possible key in some region will exist in the iterator being stitched into a single tile.
We need to add a stitch function that will work correctly even with missing / skipped keys - a 'sparse' stitch
The current stitch function is a 'dense' stitch function. If some keys are missing it will stitch things as close as is possible (it stitches based on key order rather than the value/true extent of keys). It assumes that every possible key in some region will exist in the iterator being stitched into a single tile.
We need to add a stitch function that will work correctly even with missing / skipped keys - a 'sparse' stitch