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Øystein Grøvlen
  • Member for 8 years
  • Last seen more than a month ago
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11
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0
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About

I am Senior Principal Software Engineer in the MySQL Database Service Team at Oracle. I earlier worked for 3 years in the Database Team at Alibaba. Before that, I worked for 9 years in the MySQL optimizer team.

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17
Score
10
Posts
91
Posts %
6
Score
3
Posts
27
Posts %
5
Score
3
Posts
27
Posts %
5
Score
2
Posts
18
Posts %
4
Score
2
Posts
18
Posts %
2
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2
Posts
18
Posts %
Top posts
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All Questions Answers
Score Newest
answer
3
Grouping similar rows together based on time
Apr 20, 2016
answer
3
MySQL - Planning Cost Higher Than Number of Blocks Occupied in Disk
Dec 20, 2021
answer
2
MySQL -Query with Union doesn't use index
Apr 3, 2016
answer
2
MySQL - An UPDATE from a SELECT
Apr 20, 2016
answer
2
MySQL - Finding Gaps of Date Ranges - Overlapping Dates
Apr 26, 2016
answer
2
What strategy does MySQL optimizer use when choosing between two indexes?
Aug 22, 2017
answer
1
Different execution with same query
Nov 7, 2016
answer
1
mysql 5.7 json filter and features products
Apr 20, 2016
answer
1
Good reason to convert LONGTEXT column to smaller width if field is smaller?
Apr 26, 2016
answer
1
Is there any manual for the visual explain in mysql? The output plan is unreadable
Jun 12, 2014
Top network posts
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9
Incorrect result when select count distinct with order by and math function in MySQL 5.7.17
9
Why did changing from utf8 to utf8mb4 slow down my database?
7
MySQL 8.0 Group by Performance
7
Use a CTE to UPDATE or DELETE in MySQL

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