vitess-gh/examples/region_sharding/lookup_vindex.json

{
  "sharded": true,
  "vindexes": {
    "customer_region_lookup": {
      "type": "consistent_lookup_unique",
      "params": {
        "table": "main.customer_lookup",
        "from": "id",
        "to": "keyspace_id"
      },
      "owner": "customer"
    }
  },
  "tables": {
    "customer": {
      "column_vindexes": [
        {
          "column": "id",
          "name": "customer_region_lookup"
        }
      ]
    }
  }
}