vitess-gh/examples/local/vschema.json

{
  "sharded": true,
  "vindexes": {
    "hash": {
      "type": "hash"
    }
  },
  "tables": {
    "messages": {
      "column_vindexes": [
        {
          "column": "page",
          "name": "hash"
        }
      ]
    }
  }
}