Øystein Grøvlen
Employers on the program
- 2022Oracle1 talk
- 2019–2021Alibaba Cloud3 talks
Appearances by year
- FOSDEM
- Percona Live
Talks
| Date | Event | Conference | Role | Title | Links |
|---|---|---|---|---|---|
| Feb 5, 2022 | FOSDEM 2022 | FOSDEM | speaker | Hash join in MySQL 8.0 as Oracle Hash join was introduced in MySQL 8.0.18 and was presented for the first time at FOSDEM 2020. Since then, the performance of hash join has been improved, and I…Show lessHash join was introduced in MySQL 8.0.18 and was presented for the first time at FOSDEM 2020. Since then, the performance of hash join has been improved, and I will present results that show this. | SlidesVideo |
| Feb 6, 2021 | FOSDEM 2021 | FOSDEM | speaker | Rewrite Your Complex MySQL Queries for Better Performance as Alibaba Cloud Two MySQL queries that will return the same result, may sometimes have totally different queries plans. This happens because the query optimizer does not…Show lessTwo MySQL queries that will return the same result, may sometimes have totally different queries plans. This happens because the query optimizer does not realize that the queries are equivalent. | SlidesVideo |
| May 28, 2019 | Percona Live Open Source Database Conference 2019 | Percona Live | speaker | Parallel Query Execution in POLARDB for MySQL as Alibaba Cloud The upcoming version of POLARDB supports parallel execution of SQL queries. | |
| May 28, 2019 | Percona Live Open Source Database Conference 2019 | Percona Live | speaker | The MySQL Query Optimizer Explained Through Optimizer Trace as Alibaba Cloud All major considerations and decisions made by the MySQL Query Optimizer may be recorded in an Optimizer Trace. While EXPLAIN will show the query execution plan…Show lessAll major considerations and decisions made by the MySQL Query Optimizer may be recorded in an Optimizer Trace. While EXPLAIN will show the query execution plan the Query Optimizer has decided to use, MySQL's Optimizer Trace will tell WHY the optimizer selected this plan. |
Frequent co-speakers
| Speaker | Shared events | Shared talks | Last together |
|---|---|---|---|
| Frédéric Descamps | 3 | — | 2022 |
| Peter Zaitsev | 3 | — | 2022 |
| Vicentiu Ciorbaru | 3 | — | 2022 |
| Boriss Mejias | 2 | — | 2022 |
| Bruce Momjian | 2 | — | 2022 |
| Christian Kniep | 2 | — | 2022 |
| Dave Stokes | 2 | — | 2022 |
| Federico Razzoli | 2 | — | 2022 |
| Georgios Markomanolis | 2 | — | 2022 |
| Haki Benita | 2 | — | 2022 |
| Jan-Patrick Lehr | 2 | — | 2022 |
| Jimmy Angelakos | 2 | — | 2022 |
| Joro Kodinov | 2 | — | 2022 |
| Kenny Gryp | 2 | — | 2022 |
| Marco Tusa (the Grinch) | 2 | — | 2022 |
Speakers with the same name are merged into one entry, so this page may combine more than one person. Affiliations are shown as each conference listed them.