Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

✨ Put a bloomfilter into the Parquet metadata and use for filtering #829

Closed
joocer opened this issue Jan 30, 2023 · 1 comment
Closed

Comments

@joocer
Copy link
Contributor

joocer commented Jan 30, 2023

https://github.com/inveniosoftware-contrib/intbitset > replace bitarray with something integrated

joocer added a commit that referenced this issue Jan 31, 2023
joocer added a commit that referenced this issue Jan 31, 2023
joocer added a commit that referenced this issue Feb 2, 2023
joocer added a commit that referenced this issue Feb 2, 2023
joocer added a commit that referenced this issue Feb 2, 2023
joocer added a commit that referenced this issue Feb 2, 2023
@joocer
Copy link
Contributor Author

joocer commented Aug 24, 2023

5 hashes and a 2Kbyte slot table will give about 9.8% FP rate on 10,000 items

5 hashes can't quite be made from a single 64bit hash (need 65bits [5*13bits]) - but this is worth testing to see if XORs etc creating the 5th hash still gets the same FP rate.

@joocer joocer closed this as completed Dec 10, 2023
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

1 participant