Tag: query-planning
Databases are Just Loops - Part 3: Row and Batch execution
Our database journey makes a brief stop. We need to appreciate an important design decision every database must make: Should I use row or batch execution? Depending on the database - or...
What is Cost in a Query Planner?
If you ever looked at query plan from a SQL databases - you are likely to have come into something called "cost". You may even have heard that most advanced database use based a...