I am having a lot of confusion in how to enable object caching.
Is it sufficient that I just enable object caching in w3 Total Cache settings? Or do I have to make any changes in my code cache certain objects?
How does the plugin decides which objects to cache.
For example, if I want it to cache a particular sql query, will it autimatically do it, or do I have to specify in my code or somewhere else that it needs to be cached.