Work out the Rank between the neighbouring Tasks so a move writes only the moved Task's row.
Going with base-62 keys and a C collation on the column so ordering is identical on any provider.
Nice. Ties broken by id should make concurrent drops into the same gap deterministic.
Going with base-62 keys and a C collation on the column so ordering is identical on any provider.
Nice. Ties broken by id should make concurrent drops into the same gap deterministic.