Peter Geoghegan

Author and reviewer of many features in PostgreSQL RDBMS, with a recent emphasis on in the standard B-Tree index access method and on VACUUM. Also behind many enhancements and bug fixes to PostgreSQL in areas such as concurrency control, logging and recovery, and tuple sorting.

Added various B-Tree enhancements, numerous improvements to sort performance, amcheck module, and INSERT ... ON CONFLICT DO UPDATE. Also works on bug fixes and patch review.