Top all-time · #5767
Epsio
Company blog · epsio.io/blogprogrammingdata
Epsio is the company blog at epsio.io, writing about programming and data. Since 2023, 14 different Hacker News readers have linked it 40 times, most often “How To Build a Streaming Engine”. No feed was found, so read it on the site itself.
Too few sampled comments (2) to say how often HN recommends it.?
Why HN links it
HN readers link Epsio's product pages on incremental views for existing databases, a streaming transformation tool. Comments discuss incremental view maintenance and Epsio's dataflow engine.
Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Deliver instant and always up-to-date results for complex queries with Epsio’s streaming SQL engine.
Most-linked posts?
- How To Build a Streaming Engine5 people · 5 mentions · first linked 2023-09-28
- Epsio Outperforms Apache Flink by Up to 21x on TPC-DS Dataset3 people · 3 mentions · first linked 2025-01-29
- Epsio's Diff in the Streaming Landscape2 people · 4 mentions · first linked 2023-11-14
- Thoughts on the Future of Stream Processing2 people · 3 mentions · first linked 2025-06-17
- Memory Management in a Streaming SQL Engine2 people · 2 mentions · first linked 2024-01-09
- Why is stream processing hard?2 people · 2 mentions · first linked 2025-06-18
- Out of Memory Shenanigans2 people · 2 mentions · first linked 2024-01-05
- Optimizing Streaming JOINs: Leveraging Asymmetry for Better Performance2 people · 2 mentions · first linked 2025-02-10
What Hacker News says?
This looks extremely cool. This is basically incremental view maintenance in databases, a problem that almost everybody (I think) has when using SQL databases and wanting to do some derived views for more performant access patterns. Importantly, they seem to support a wide breath of SQL operators, support spilling computation state to disk, and it's open-source! Interestingly, it compiles queries to Rust, so an appr…
Comment linking /
on “Feldera Incremental Compute Engine”Submitted Out of Memory Shenanigans as a story · 32 points
HN discussionHi! - Actually, Epsio has its own dataflow engine. It's based on much of the same theory as these other technologies, we just found that their implementation doesn't quite fit our use case neatly. Just as an example, Timely/Differential dataflow requires saving state in memory. While this results in extremely low latency (beneficial for its original purpose), the trade-off is the high memory footprint required to sa…
Comment linking /blog/epsios-diff-in-the-streaming-landscape
on “Show HN: Epsio – Incremental views for your existing database”Submitted Thoughts on the Future of Stream Processing as a story · 7 points
HN discussionSubmitted Optimizing Streaming JOINs: Leveraging Asymmetry for Better Performance as a story · 7 points
HN discussionSubmitted Why is stream processing hard? as a story · 6 points
HN discussionSubmitted Epsio Outperforms Apache Flink by Up to 21x on TPC-DS Dataset as a story · 4 points
HN discussionSubmitted Epsio Outperforms Apache Flink by Up to 21x on TPC-DS Dataset as a story · 4 points
HN discussionSubmitted Scaling PostgreSQL for Complex Queries as a story · 4 points
HN discussionSubmitted Out of Memory Shenanigans as a story · 4 points
HN discussionSubmitted Why We Built a Streaming SQL Engine as a story · 4 points
HN discussionSubmitted Is It Time to Rethink Stream Processing? as a story · 3 points
HN discussionSubmitted A 7x faster Flink alternative as a story · 3 points
HN discussionSubmitted MySQL Slow Query Log as a story · 3 points
HN discussionSubmitted Memory Management in a Streaming SQL Engine as a story · 3 points
HN discussionSubmitted The gap between the data we store and the data we need as a story · 3 points
HN discussionSubmitted How To Build a Streaming Engine as a story · 3 points
HN discussionSubmitted Epsio – streaming transformations made easy as a story · 2 points
HN discussionSubmitted Stream processors and ease of use as a story · 2 points
HN discussionSubmitted The Future of Data Streaming as a story · 2 points
HN discussionSubmitted A 7x faster Flink alternative as a story · 2 points
HN discussionSubmitted Why Streaming SQL? as a story · 2 points
HN discussionSubmitted Building a Streaming SQL Engine as a story · 2 points
HN discussionSubmitted How We Built a Streaming SQL Engine as a story · 2 points
HN discussionSubmitted How We Built a Streaming SQL Engine as a story · 1 points
HN discussionSubmitted The Future of Stream Processing as a story · 1 points
HN discussionSubmitted Making streaming joins 50% faster as a story · 1 points
HN discussionSubmitted Floating Points in Streaming Systems as a story · 1 points
HN discussionSubmitted Streaming SQL Arithmetic: The Horror as a story · 1 points
HN discussionSubmitted Memory management in a streaming engine as a story · 1 points
HN discussion