lenra-io / lenra-io/query-parser
[Task] Implement `$expr` operator
Open
Nobody has claimed this yet.
enhancement
good first issue
hacktoberfest
- Dominant language
- Elixir
- Stars
- 0
- Forks
- 0
- PR merge metrics
- No merged PRs in 30d
Description
What should be done
Implement Mongo's $expr operator. See the documentation of the expr operator here https://www.mongodb.com/docs/manual/reference/operator/query/expr/#mongodb-query-op.-expr.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue names no repository files or tests; begin by locating the query-parser entry point and comparing its current operator handling with MongoDB's $expr documentation. Done means $expr is implemented according to the linked MongoDB semantics and its behavior is validated against the documented cases.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- elixir, mongodb
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100