Does anyone here impose a limit on

pinot.broker.query.response.limit

- we are thinking to limit to 1k, and were wondering what other pinot installations use.

This config is used to prevent super expensive queries exhaust the resource on the servers. Based on your use case, you may choose the value accordingly. If normally you won't run query with limit higher than 1000, you can set it to 1000, and it will bound the limit to 1000

this is typically used to prevent external integrations like presto to overload the system for queries like

select *