quickwit-oss / quickwit-oss/quickwit

Support for large start_offset

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enhancement
Dominant language
Rust
Stars
11.7k
Forks
597
Avg merge
2d 22h
Merged PRs (30d)
37

Description

Outlined use case here https://github.com/quickwit-oss/quickwit/issues/1449#issuecomment-1127911151

After https://github.com/quickwit-oss/quickwit/pull/1539, the limit is 10_000. It would be good to support very large start_offsets for some scenarios, e.g. data extraction.

For very large start_offset, we can probably assume that:

  • strict score sorting is not that important anymore
  • the split merge algorithm should still be deterministic, to be able to scan the data

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading issue #1449's linked comment and pull request #1539 to understand the current 10,000 start_offset limit and its implementation. Trace the search pagination and split-merge paths, then define how very large offsets can preserve deterministic scanning while relaxing strict score ordering; done means the behavior is implemented and covered by tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
search
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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