Wait events are perhaps inspired by oracle's stuff, at least indirectly. It was developed by Robert Haas and Amit Kapila, working for EDB. Traditionally a lot of their customers have migrated from Oracle.
The redesigned way of storing stats in memory and pg_stat_io aren't inspired by Oracle. Melanie, who authored pg_stat_io, has never used oracle. I haven't used oracle in ~15 years, and the only thing I remember is fighting crashes in connect_by (I influenced the design of pg_stat_io, and authored large portions of the shared memory stats stuff).
Comments
Wait events are perhaps inspired by oracle's stuff, at least indirectly. It was developed by Robert Haas and Amit Kapila, working for EDB. Traditionally a lot of their customers have migrated from Oracle.
The redesigned way of storing stats in memory and pg_stat_io aren't inspired by Oracle. Melanie, who authored pg_stat_io, has never used oracle. I haven't used oracle in ~15 years, and the only thing I remember is fighting crashes in connect_by (I influenced the design of pg_stat_io, and authored large portions of the shared memory stats stuff).
Edit: noted Amit's co-authorship of wait events