Deleted Data in SQL still shows up in Graphiql
### Summary
I deleted some data in database through direct SQL queries. It still shows up in Graphiql
### Additional context

this is my postgraphile server settings
```
app.use(
  postgraphile(rootPgPool, ["limitd_app", "limitd_app_private"], {
    // watchPg: true,
    graphiql: process.env.NODE_ENV !== "production",
    appendPlugins: [ConnectionFilterPlugin],
    enableCors: true,
    enhanceGraphiql: true,
    dynamicJson: true,
    retryOnInitFail: true,
    jwtSecret: process.env.JWT_SECRET,
    jwtPgTypeIdentifier: "limitd_app.jwt_token",
    jwtRole: ["role"],
    pgDefaultRole: "limitd_app_anonymous",
    showErrorStack: false,
    // extendedErrors: ["hint", "detail"]
  })
);
```

is there some sort of caching mechanism? I ran a direct SQL Query against the database to delete a row, but it's not deleted when i query through Graphiql. 