Sumit Kumar

I've spent over two decades working with enterprise data platforms, starting as a hands-on database administrator and architect across both commercial and community database engines. Along the way, I've published extensively on database internals and helped hundreds of engineers and architects deepen their understanding of how databases actually work.

The Planner's Guessing Game comes from that same instinct — not to accept "the planner just knows" as good enough, but to open the source code and find out for myself.