Tomas Vondra

I'm a long-term PostgreSQL developer, contributor and committer. I've authored and co-authored a number of features, including extended optimizer statistics (CREATE STATISTICS), various optimizer improvements, hash join optimizations, specialized memory allocators, performance optimizations, and various other improvements. I work as EDB as a PostgreSQL engineer, where I'm working various internal projects, ongoing contributions to community PostgreSQL, and so on. Most of the time I work in C, Python, Bash, SQL and PL/pgSQL. I used to do work in (X)HTML, CSS, JavaScript. I used to work with PL/SQL (OCP), Java, and similar languages As a president of the CSPUG (Czech and Slovak PostgreSQL Users Group) executive committee, I'm responsible for organizing the Prague PostgreSQL Developers Day conference, and I participate in organization of other PostgreSQL-related events. I do regularly give talks on such events.

CREATE STATISTICS, improvements to pageinspect, ANALYZE, distinct value estimates, hash join optimizations, special-purpose memory allocators