STEAMPIPE_CACHE environment variable resolves to service cache enabled as well as client cache enabled
service cache enabled is used by the plugin manager to enable/disable caching on the plugins during startup (runtime toggle is not allowed) - with a max_ttl
client cache enabled is used to enable/disable the cache on the database connection (fdw)
A TTL can also be set on the client side capped to max_ttl on the server
