First I find out the first commit that is in 5.7 that isn’t in 5.6 (using bzr missing) and then look at the authors of all of those commits. Measuring the number of commits is a really poor metric as it does not measure the complexity of the code committed, and if your workflow is to revise a patchset before committing, you get much fewer commits than if you commit 10 times a day.

There are a good number of people who are committing a lot of code to the latest MySQL development tree. (Sorry for the annoying layout of “count. number-of-commits name”)

1. 1022 Magnus Blaudd
2. 723 Jonas Oreland
3. 329 Marko Mäkelä
4. 286 Krunal Bauskar
5. 230 Tor Didriksen
6. 218 John David Duncan
7. 205 Vasil Dimov
8. 197 Sunny Bains
9. 166 Ole John Aske
10. 141 Marc Alff
11. 141 Frazer Clement
12. 140 Jimmy Yang
13. 131 Joerg Bruehe
14. 129 Jon Olav Hauglid
15. 125 Annamalai Gurusami
16. 106 Martin Skold
17. 104 Nuno Carvalho
18. 103 Georgi Kodinov
19. 102 Pekka Nousiainen

There’s also a good number who have 50-100 commits:

1. 99 Mauritz Sundell
2. 97 Bjorn Munch
3. 92 Craig L Russell
4. 85 Andrei Elkin
5. 81 Mattias Jonsson
6. 73 Nirbhay Choubey
7. 71 Roy Lyseng
8. 68 Kevin Lewis
9. 66 Rohit Kalhans
10. 65 Guilhem Bichot
11. 61 Sayantan Dutta
12. 59 Akhila Maddukuri
13. 58 Jorgen Loland
14. 57 Martin Zaun
15. 56 Harin Vadodaria
16. 55 Inaam Rana
17. 53 Venkatesh Duggirala
18. 53 Venkata Sidagam
19. 52 Gleb Shchepa
20. 51 Norvald H. Ryeng
21. 51 Jan Wedvik
22. 50 Tatjana Azundris Nuernberg

And there’s even more with less than 50:

1. 49 Manish Kumar
2. 49 Alexander Barkov
3. 48 Shivji Kumar Jha
4. 48 Martin Hansson
5. 42 Maitrayi Sabaratnam
6. 40 Satya Bodapati
7. 39 Horst Hunger
8. 38 Neeraj Bisht
9. 34 Yasufumi Kinoshita
10. 34 prabakaran thirumalai
11. 34 Kristofer Pettersson
12. 33 Evgeny Potemkin
13. 33 Dmitry Lenev
14. 33 Chaithra Gopalareddy
15. 33 Alexander Nozdrin
16. 31 Hemant Kumar
17. 31 Allen lai
18. 31 Aditya A
19. 30 Nisha Gopalakrishnan
20. 30 Anirudh Mangipudi
21. 29 Tanjot Uppal
22. 28 Christopher Powers
23. 27 Sujatha Sivakumar
24. 27 Ashish Agarwal
25. 25 Olav Sandstaa
26. 25 Mayank Prasad
27. 24 Anitha Gopi
28. 24 Ahmad Abdullateef
29. 23 Hery Ramilison
30. 22 Vamsikrishna Bhagi
31. 22 Praveenkumar Hulakund
32. 22 Pedro Gomes
33. 20 Sergey Glukhov
34. 20 Libing Song
35. 19 Vinay Fisrekar
36. 19 Harin Vadodaria
37. 18 Raghav Kapoor
38. 18 Luis Soares
39. 18 Gopal Shankar
40. 18 Astha Pareek
41. 17 viswanatham gudipati
42. 17 Thayumanavar
43. 17 Ramil Kalimullin
44. 16 Oystein Grovlen
45. 15 Dmitry Shulga
46. 15 Amit Bhattacharya
47. 15 Akhil Mohan
48. 14 Ravinder Thakur
49. 14 Kent Boortz
50. 13 Bernd Ocklin
51. 12 Bill Qu
52. 11 Shaohua Wang
53. 10 Sven Sandberg

There’s also a good number with fewer than 10 (31 names actually), which is encouraging as it means that this means it’s likely people who are not involved every day in development of new code (maybe QA, build etc) which probably means that (at least internally) contributing code isn’t really a big problem (and as I’ve shown previously, the barriers to external contributions between Oracle MySQL and MariaDB appear to result in roughly the same amount of code from people outside those companies).

There are 125 names here in total, with 19 having over 100 commits, 22 with 50-100 commits, another 53 with 10-50 commits and 31 with <10. So it’s possible to say that there are at least 125 people at Oracle working on MySQL – and I know there are awesome people who are missing from this list as their work doesn’t result in committing code directly to the tree.