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Where did all of the MySQL Developers Go?

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Mar. 22nd, 2010 | 10:25 am

As of late I have been getting a lot of questions around "Where did the MySQL developers go?'".

The answer is "elsewhere and nowhere".

The vast majority are still at Oracle, some have left, but plenty are still there. This got me thinking about "who wrote what". Innodb is a sizable piece of code and it continues to be at Oracle. Without Innodb, you don't really have a database that is 24/7. Innodb has been there for years.

What about the other pieces?

The optimizer guys are almost gone. They left a while ago to MontyAB.

Replication? They are all there minus the guy who wrote the first version (which is still pretty much what is used today). Him? He does consulting for different companies, but he left MySQL in 2002 or so. The execution/trigger system is a bit of combination. The "pre-stored procedures" stuff was all written back in the day, and little of it has changed, everything past that? That work was done by folks who are still at Oracle.

The parser? There is not much to the MySQL parser. A large chunk of it came from the merging of MiniSQL and Unireg (which is the only big thing I would say is wrong in Henrik's Map of MySQL Forks). Most of the additional work done there was for the monolithic stored procedure design that went into 5.0, and later stuff done by partitioning.

The guys who wrote the connectors are all at Sun still. I've not heard of a single one of them leaving.

The person who wrote stored procedures? He decided to go fishing back in 2005, I don't believe anyone has heard of him sense.

So the people who make up MySQL? Most are at Oracle.

How about the "group leaders" that made up the early MySQL leadership? Three are with MontyAB, another went fishing, and I work on Drizzle.

How about Drizzle? There are a few folks who did early patches on Drizzle that are still at Oracle (and I don't believe they are allowed to contribute any longer). Five are at Rackspace, one is at a storage engine company, and I am happily taking contracts on engineering work and spending the rest of my time playing with my aging dog. There are a couple more Drizzle folks who I suspect by the end of the year will be core developers and I am curious to see where they land (keep in mind, since our creation we passed 150+ contributors well over a year ago, so we have people all over the place).
Screen shot 2010-03-22 at 10.01.03 AM.png

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Comments {10}

Re: connectors

from: jimw
date: Mar. 22nd, 2010 07:05 pm (UTC)
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i don't know where jess landed. he's listed himself as 'ex-programmer' on linkedin.

the mysql odbc driver is actually pretty good, and could be significantly simplified for drizzle since you can shed a bunch of the baggage. and it has a test suite. it is gpl licensed, though.

but you'll certainly get no disagreement from me that odbc is a complete pia. one of the big problems is that the only people who still seem to use it are also using long-obsolete technology like vb6 or worse, which can be difficult to just get going to test problems they report, let alone decipher what non-specified behavior they are relying upon.

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Re: connectors

from: macplusg3
date: Mar. 23rd, 2010 02:42 am (UTC)
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One of the benefits of having a protocol test suite... the connectors should "just work"

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Re: connectors

from: jimw
date: Mar. 23rd, 2010 08:24 pm (UTC)
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except, of course, a protocol test suite doesn't tell you anything about whether the odbc driver returns the correct results for a call to SQLPrimaryKeys().

(the odbc driver is an interface on top of libmysql, so a protocol test suite won't help with testing it.)

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