Incremental processing is the foundation of efficient stream processing across the entire latency spectrum, yet SQL lacks a native mechanism for querying changes to a table over time. Today we present our #SIGMOD paper describing Snowflake Change Queries https://t.co/DtkYvIs397

Question for Data Twitter. What are your most important SQL Window Function use cases? Rank? Sequence numbers? Rolling Averages? Row Totals? Cumulative Sums? What else?

Galactic atmospheres influence how galaxies live and die, but how do they work? Join us Friday, December 2 @ 7PM PT for a public astronomy lecture on galactic atmospheres. It will be hosted in-person at Caltech and streamed on Youtube Live. See you there! https://t.co/Xv50pedzTe

New recording (no registration required!) at

Slides at

Recording at

The #current2022 talk I gave with @takidau is online! It’s called “Streaming 101 Revisited: A Fresh Hot Take”. We talk about what’s missing in existing models and propose new ideas to make declarative stream processing easier and more powerful than ever.

How can we grow beyond the limitations of past #streamprocessing systems? What awaits us when we do? 🤔 If these questions keep you up at night, don’t miss this #Current22 panel featuring @takidau and @sortalongo from @SnowflakeDB. More info: https://t.co/QJB3UcZzs7

(The conference was a few weeks ago, but I'm... a bit behind on things. Better late than never!)

Very excited about our #VLDB2021 paper on #watermarks. We've observed some confusion around the what, why, and how, so it's an honor to get to discuss them in a research context. Give it a read if you're interested! https://t.co/3I3dgiWYcZ

I left a comment on a PR suggesting adding a TODO linking to a ticket. That’s a lot of levels of delegation to tell myself to do something…

Great conversation about the nature of explanation. I love seeing @DavidDeutschOxf ideas being built upon

watching a Burger King employee shift receipts one by one on the order slider thingy, and all I can think is "circular buffer"

A developing, autocratic country had the spare time and money to organize an international rescue effort of 13 nobodies, and everyone's mad that the billionaire who tried to help insulted a couple of the rescuers. I'm still rubbing my eyes at the first part.

org GC > org ref counting

┓┏┓┏┓┃ ┛┗┛┗┛┃＼○／ ┓┏┓┏┓┃ / ┛┗┛┗┛┃ノ) H ┓┏┓┏┓┃ I ┛┗┛┗┛┃ P ┓┏┓┏┓┃ C ┛┗┛┗┛┃ H ┓┏┓┏┓┃ A ┃┃┃┃┃┃ T ┻┻┻┻┻┻

OH: Do we want to do this in prod or devel first? #rhetoricalQuestions

URGENT: Huge explosion rocks #Tianjin, northeastern China http://t.co/USnlhwseng (Video via @Holbornlolz) Details on http://t.co/3vDnGyTsS7

I’m a twitter noob… didn’t .@

Cribbing an idea from @sortalongo http://t.co/gsEL5Cz6fj