This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Chad Scherrer
cscherrer.bsky.social
did:plc:6ls7x4kw3wsz2opik4wobgkm
Neat trick for merging hash tables:
1. Run a HyperLogLog over each (fast)
2. Merge these to get the total unique count (very fast)
3. Use this for sizing the result
4. Merge tables in
Memory friendly, and just one allocation!
2026-03-26T23:03:40.395Z