Vectorized Execution
Vectorized execution moves batches of values between query operators instead of single rows — spreading call overhead thin and keeping the CPU’s work in cache.
Vectorized execution moves batches of values between query operators instead of single rows — spreading call overhead thin and keeping the CPU’s work in cache.
Two engines run the same SQL and one finishes far sooner. See which layer supplies which part of that gap, and where each one stops helping.