YDB is an open source Distributed SQL Database that combines high availability and scalability with strong consistency and ACID transactions
C-Rank Grade: S (Elite) - 69/100
External PR Merge Rate: 75%
Response Time: -
First Timer Success: 80%
ydb-platform/ydb has a recorded first-timer success rate of 79.9%. Repositories ranked S typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in ydb-platform/ydb respond to incoming external pull requests in approximately 0.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 69.0 places ydb-platform/ydb in the S tier.
The external contributor pull request merge rate for ydb-platform/ydb is 74.6%, based on public PR activity from non-core contributors.
ydb-platform/ydb currently has 1 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Collaborative maintainer environment in ydb-platform/ydb. Reviews community pull requests with focus on project quality.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
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Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 09:00 UTC (09:00 UTC in your timezone). Recommended submission window is Monday - Wednesday from 08:00 to 12:00 UTC (08:00 - 12:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~16 hours (93% approval). Large PRs (>500 lines) take ~115 hours (34% approval). Keep your diff compact for rapid review.
Add column type information for TableIndex.KeyColumnNames in describe response Hi! In Embedded UI we need to display column types for columns listed in PathDescription.TableIndex.KeyColumnNames. Additional context: this request comes from ydb-platform/ydb-embedded-ui#3744. In that task we were asked to display min_max indexes in Embedded UI, including the indexed column type. Currently the describe response for a table index contains indexed column names, for example: { "PathDescription": { "TableIndex": { "Name": "idx_minmax", "Type": "EIndexTypeLocalMinMax", "KeyColumnNames": ["resource_id"] } } } But there is no reliable way to get the corresponding column types from the same index describe response. For regular tables the column types are available in PathDescription.Table.Columns. For column tables they are available in PathDescription.ColumnTableDescription.Schema.Columns. However, when describing the index path itself, the response only contains Tab
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When evaluating whether to contribute to ydb-platform/ydb, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of ydb-platform/ydb acknowledge new external contributions in approximately -. Out of all submitted pull requests from non-core authors in the last 180-day window, 74.6% were successfully merged into the primary branch.
ydb-platform/ydb has a recorded first-timer success rate of 79.9%. Repositories ranked Elite typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~-. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 69.0 places ydb-platform/ydb in the Elite tier.
The external pull request merge rate is 74.6%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, ydb-platform/ydb currently has 1 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for ydb-platform/ydb are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.