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About me

I am a database engineer at the NTT DATA Group Corporation. My primary responsibilities include support, research and development (R&D), and maintaining several extensions for PostgreSQL. In the support team, we handle over 100 inquiries annually. Our R&D work on PostgreSQL covers topics such as PostgreSQL on Kubernetes and Neon, a software solution for separating compute and storage in PostgreSQL.

Interview

• POSETTE 2025 Speaker Interview

PostgreSQL Contribution

• Vacuum observability (48f11bfa0, e646450e6, ab40db385, 0d7895206, dd3ae3783, 8c2d5d4f1)
• WAL usage statistics (wal_fpi_bytes) (ad25744f4, 5ab0b6a24, f9a09aa29)
• Statistics and monitoring views (2d4ead6f4, deb674454, 857df3cef, 235c09efb, 0a4db67b5)
• Replication (422e54e30, 400a790a4, eef1ba704, e35add48c, 21c1125d6, 5a4eba558, 883a95646, cb937e48f)
• COPY and file_fdw (e0a3a3fd5, 26cb14aea, f3da70a80, ad381d0d9, bc2f348e8)
• Client tools (psql, createuser, pg_checksums, pg_waldump) (361499538, 9a6915257, 6afcab6ac, 4cbe57974, 08951a7c9, a5b336b8b, 0b0d277c3, e2ce88b58, 2eb1fc8b1, 51893c846, 3f238b882)
• Backend code cleanups (e3481edfd, 59bae2343, 9181c870b, 24cb3a08a, 4c5e1d078)
• Documentation and configuration fixes (3ef575e4f, 2963ddeef, 9fcd4874e, d83a108c1, 0cf79a7f6, d78b6cbb6, e5975c2da, a73d6c87f, fab54e6c1, 0b039e3a8, 61d599ede)