Yingjun Wu 🤘 (@YingjunWu) / X

Yingjun Wu 🤘

2,716 posts

Yingjun Wu 🤘

@YingjunWu

Founder. Building the infra for agents and humans @RisingWaveLabs. Sharing what breaks, what doesn't, and what's next. ex-@awscloud, PhD @NUSingapore @CMUDB.

San Francisco, CA

Joined February 2011

Yingjun Wu 🤘
@YingjunWu
Aug 24, 2025
I witnessed how @databricks grow from a research project into a startup, and now into a $100B company. The biggest lesson for me isn’t how they built a database, but how they marketed it. From pushing the “open table format” story, to running Databricks vs. Snowflake performance
90K
Yingjun Wu 🤘
@YingjunWu
Nov 16, 2023
New data engineering trend (?): Several companies have told me that they are moving away from Kafka to S3 for message queuing use cases. The reason is that they think Kafka is too expensive, and it's not worth running Kafka instances just for system decoupling or connection.
72K
Yingjun Wu 🤘
@YingjunWu
Oct 18, 2022
We are officially a series-A startup now! 🎆🎆🎆 With $36M from the series-A round, we will accelerate the development of our flagship product, RisingWave Cloud, which is now open for private preview! Press release:
globenewswire.com
RisingWave Labs Secures $36M in Series A Funding for its Stream Processing Platform
Former AWS and IBM database engineer builds a company to deliver a simple, affordable cloud-native streaming database for real-time application development...
Yingjun Wu 🤘
@YingjunWu
Apr 22, 2022
It was my paper published in VLDB 2017. The original title was "This is the Best Paper Ever on In-Memory Multi-Version Concurrency Control." We changed the title 3 times as the chair threatened to desk reject our paper 🙃
Yingjun Wu 🤘
@YingjunWu
Mar 5, 2025
If you are building a S3-native (or @ApacheIceberg-native) systems, you should definitely check out this smart caching project called Foyer (link in comment). One line: It cuts your S3 bill by 90%!
18K
Yingjun Wu 🤘
@YingjunWu
Sep 16, 2024
Postgres, Kafka, Iceberg. Build everything around them. That’s what I’m betting on heavily.
15K
Yingjun Wu 🤘
@YingjunWu
Feb 8, 2023
I recently wrote a new blog (bit.ly/3RGlGAR) to share my thoughts about stream processing. While having been working on stream processing for 10+ years, I still feel I am pretty new to this domain. I am still learning, and any comments are greatly appreciated!
4.7K
Yingjun Wu 🤘
@YingjunWu
Jan 3, 2023
It's already 2023, and RisingWave will enter its 3rd year. RisingWave, has grown from a personal project to one with 3.7K stars and 100+ contributors. I summarized RisingWave's 2022 here in a blog: bit.ly/3VXduNb. Any comment is welcome, and happy new year!
3.8K
Yingjun Wu 🤘
@YingjunWu
Jun 1, 2023
The landscape of vector databases. Did I miss anything? @trychroma @qdrant_engine @milvusio @zilliz_universe @weaviate_io @pinecone @elastic @Redisinc @RocksetCloud @SingleStoreDB @PostgreSQL #vectordatabase
14K
Yingjun Wu 🤘
@YingjunWu
Feb 12, 2024
Who uses @duckdb for real? Very interesting discussion. Seems that DuckDB is gaining widespread popularity in the data science domain. Can we simply use SQL (instead of Python, like Pandas) to do data science???
From the dataengineering community on Reddit
From reddit.com
11K
Yingjun Wu 🤘
@YingjunWu
Jun 23, 2023
Stream processing + OLAP = true real-time analytics 🚀🚀🚀 @RisingWaveLabs @ClickHouseDB
20K
Yingjun Wu 🤘
@YingjunWu
Apr 24, 2025
MotherDuck Instant SQL demo 👇 cc @motherduck @matsonj
00:00
4.4K
Yingjun Wu 🤘
@YingjunWu
Oct 1, 2023
The stream processing landscape. I hope I've included all the major systems 🙂
16K
Yingjun Wu 🤘
@YingjunWu
Aug 4, 2022
Excited to meet great people from @Decodableco @immerokcom @DeltaStreamInc @VervericaData @SingularityData @streamnativeio @redpandadata at @FlinkForward conference! The streaming market is booming💥and full of opportunities! Hope all the streaming companies grow and thrive!