ozontech / ozontech/seq-db

Bug: Empty search result for nested index

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bug
Dominant language
Go
Stars
131
Forks
16
Avg merge
2d 4h
Merged PRs (30d)
11

Description

We get an empty search result for a query with "AND" and using a nested index

The reason is an undefined LID position with the same seq.ID when sorting.

We need to specify the LID positions for such cases

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 tracing the Go code handling AND queries on nested indexes, then follow the sorting path where identical sequence IDs use LID positions. The issue is done when those cases no longer produce empty search results and the relevant nested-index query behavior is covered by a regression test.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
databases, search
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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