Reynold Xin

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331 appearances 1 recordings 1 series first heard Jun 2026 last heard 24 Jun

Reynold Xin’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 1 in all, peaking in Jun 2026 with 1.

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There's what we call OLTP databases, which are transactional and

Think of your Postgres, your MySQL, your Oracle databases.

And the other side is what we call analytics.

And sometimes you might refer to it as OLAP.

And the difference is on OLTP, you typically have maybe run some transaction or some event that looks up at one specific role.

We update that role, right?

It's a very role-oriented data structure.

And on analytics, you're trying to reason on the data.

You're trying to compute, hey, what's my revenue per store?

What's my...

How's my website doing every day?

And then you eventually want to probably end up running machine learning on it to predict, hey, how will my maybe sales be going in the future?

There are some very different architecture, and everybody starts with OLTP databases.

Every app, when you become serious enough, that needs more than markdown files.

You need to have a database.

You want to boost your data.

You want to have some transactional consistency.

But once you want to reason on the data, if you only have, like,

100 rows, it's probably okay to run it on your Postgres or on your MySQL database.

But once you have more data and want to run more complicated analysis, the very analysis might crush your Postgres database.

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