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QuantCo Engineering Blog
Company blog · tech.quantco.comprogrammingdata
QuantCo Engineering Blog is the company blog at tech.quantco.com, writing about programming and data. Since 2023, 3 different Hacker News readers have linked it 3 times. It is still writing: the last post was on 2026-03-17, and you can follow it by feed.
Too few sampled comments (1) to say how often HN recommends it.?
Why HN links it
Linked in an HN thread on testing SQL. The one comment describes testing the data a pipeline produces against expectations, using an in-house tool; it does not discuss this blog's writing.
Summarised by Claude from a sample of 1 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
A developer blog by QuantCo engineers.
What Hacker News says?
The teams I've been working on have resorted to data tests instead of code tests. That means that the data produced by your code is tested against a certain set of expectations - in stark contrast to code being tested _before_ its execution. We've written our own tool to compare different data sources against each other. This allows, for example, to test for invariants (or expected variations) between and after a tr…
Comment linking /2022/06/20/datajudge.html
on “Ask HN: How do you test SQL?”Submitted Dataframely: A polars-native data frame validation library as a story · 39 points
HN discussionSubmitted Array API standard meets ONNX as a story · 2 points
HN discussion