Check out my public shares
These are some of my public sharing
CMU Seminar: StarRocks Query Optimizer Three representative optimizations of StarRocks Optimizer and its approaches to addressing cost estimation challenges. 
UCAS Lecture: How to build an extremely fast database Share the methodology of building an extremely fast database from multiple perspectives 
How to build an extremely fast vectorization engine The key points of Database Vectorization Check out my projects
Over the past ten years, I have been actively involved in OLAP database-related work, making significant contributions to the open-source communities of Apache Kylin, Apache Doris, and StarRocks.
Some of my writing
Here are some of my recent database posts.
Precomputation vs on-the-fly computation:Materialized View,Aggregation Table, Index, Cache, Generated Column
Scalability: Multi nodes scalability, multi cores scalability, maximize single-core CPU performance
Query data stream processing: Query Optimizer, Query Scheduler, Query Executor, Storage Layer, Vectorized Executor
Resource Utilization, Manual Tuning vs. Adaptive Tuning vs. AI Tuning, Extreme Elasticity in Serverless, Architecture vs. Details, Approximate vs. Exact, Performance testing
