Tatsuro Yamada is a database engineer at NTT Comware and performs consultancy and support service for NTT group company. He gave talks several times in PGCon Japan, PGConf.Asia, PGCon, PGConf.Eu and PGConf.Russia. Also, He is a member of PGConf.Asia organizers since 2017. He is an oracle_fdw committer and pg_plan_advsr author. Additionally, He contributes to PostgreSQL core to help DBA such as creating Progress reporting features for CLUSTER/VACUUM FULL on PG12 and for ANALYZE on PG13. Currently, He focuses on improving pg_plan_advsr for automated plan tuning feature more efficiency.