ITPUB
Jan 29, 2023 · Databases
How to Query Sharded Orders Efficiently: Redundant, Index, and Gene Strategies
When order_id is not the sharding key, querying a sharded order table can require scanning every shard, but three techniques—data redundancy, an index table, and embedding shard information into the order_id (gene method)—enable fast, single‑shard lookups.
gene methodindex tableorder query
0 likes · 10 min read