TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbors. No infrastructure ceiling.
C-Rank Grade: B (Solid) - 52/100
External PR Merge Rate: 55%
Response Time: -
First Timer Success: 55%
pingcap/tidb has a recorded first-timer success rate of 55.0%. Repositories ranked B typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in pingcap/tidb 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 52.3 places pingcap/tidb in the B tier.
The external contributor pull request merge rate for pingcap/tidb is 55.3%, based on public PR activity from non-core contributors.
pingcap/tidb currently has 1 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Rigorous architecture standards (75% critical review signals). Ensure PRs strictly follow guidelines before requesting review in pingcap/tidb.
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.
[](https://getmerged.abhishekco.de/pingcap/tidb?utm_source=github&utm_medium=badge)
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
Calculating local time...
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Detected: UTC
Maintainers are most responsive around 14:00 UTC (14:00 UTC in your timezone). Recommended submission window is Monday - Thursday from 12:00 to 16:00 UTC (12:00 - 16:00 UTC local).
Limited recent maintainer review activity recorded for this repository. Prediction based on heuristic baseline.
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~16 hours (69% approval). Large PRs (>500 lines) take ~115 hours (25% approval). Keep your diff compact for rapid review.
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Enhancement According to tidb/pkg/distsql/request_builder.go Line 94 in fd7c13a if builder.Request.KeepOrder && builder.Request.Concurrency == vardef.DefDistSQLScanConcurrency { , when max_distsql_concurrency is the default setting, the first SELECT in non-transactional DML may only use max_distsql_concurrency=2, which affects its performance.
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When evaluating whether to contribute to pingcap/tidb, 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 pingcap/tidb acknowledge new external contributions in approximately -. Out of all submitted pull requests from non-core authors in the last 180-day window, 55.3% were successfully merged into the primary branch.
pingcap/tidb has a recorded first-timer success rate of 55.0%. Repositories ranked Solid 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 52.3 places pingcap/tidb in the Solid tier.
The external pull request merge rate is 55.3%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, pingcap/tidb 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 pingcap/tidb 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.