⚡ Bolt: [performance improvement] Optimize edge column lookups in exportDDL

[seonghobae]

💡 What: Optimizes fkColumnsForEdge in the ERD exporter to use an optional pre-computed handleToCol map for resolving foreign key column handles, reducing complexity.

🎯 Why: During DDL export, exportDDL iterated through every edge and called fkColumnsForEdge, which previously used array .find() to scan the entire columns list of both the source and target nodes to match handle IDs. This resulted in an $O(E \times C)$ bottleneck.

📊 Impact: Decreases export time complexity for handling edge column mapping from $O(E \times C)$ to $O(E + V \times C)$, significantly speeding up the DDL generation process for large schemas and reducing unnecessary garbage collection pressure from intermediate closures.

🔬 Measurement: Verify tests still pass: cd frontend && pnpm run typecheck && pnpm test && pnpm run build. The resulting DDL output should remain functionally identical.

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PR created automatically by Jules for task 11794925502051570268 started by @seonghobae

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[opencode-agent]

Pull request overview

OpenCode cannot approve yet because required coverage evidence did not pass.

Review outcome

1. HIGH .github/workflows/opencode-review.yml:1 - Coverage evidence did not prove required test/docstring evidence

• Problem: The required coverage-evidence job result was failure, so OpenCode cannot establish approval sufficiency for this head.

• Root cause: Automated approval is only valid when the same-head coverage-evidence job proves supported repository test suites passed and configured docstring gates passed or were advisory, or reports not applicable because no supported source files or package manifests exist. Missing, failed, skipped, unavailable, or unsupported-tooling test evidence is a blocker.

• Fix: Install or configure the repository test/docstring evidence tooling when source files or package manifests exist, rerun the current-head coverage-evidence job, and approve only after it reports success with required evidence or explicit no-source not-applicable evidence.

• Regression test: Keep the approval branch checking needs.coverage-evidence.result == success before posting APPROVE, and publish REQUEST_CHANGES when coverage-evidence blocker states such as cancelled, skipped, failed, unsupported-tooling, or below-100 evidence are present.

• Result: REQUEST_CHANGES

• Reason: coverage-evidence result was failure, so required test/docstring evidence was not proven for current head 87b66508fb0c6b64f773c7bda76fdab26c00e959.

• Head SHA: 87b66508fb0c6b64f773c7bda76fdab26c00e959

• Workflow run: 29649233860

• Workflow attempt: 1

Coverage evidence

Coverage evidence job did not run or did not publish coverage evidence.

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file: bolt.md"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file: bolt.md"]
  R1 --> V1["required checks"]
  Evidence --> S2["Frontend: export.ts"]
  S2 --> I2["browser runtime and bundle"]
  I2 --> R2["Review risk: Frontend: export.ts"]
  R2 --> V2["frontend tests"]

Loading

[opencode-agent]

OpenCode Review Overview

• Head SHA: 87b66508fb0c6b64f773c7bda76fdab26c00e959
• Workflow run: 29649233860
• Workflow attempt: 1
• Gate result: REQUEST_CHANGES (approval step)

Pull request overview

OpenCode cannot approve yet because required coverage evidence did not pass.

Review outcome

1. HIGH .github/workflows/opencode-review.yml:1 - Coverage evidence did not prove required test/docstring evidence

• Problem: The required coverage-evidence job result was failure, so OpenCode cannot establish approval sufficiency for this head.

• Root cause: Automated approval is only valid when the same-head coverage-evidence job proves supported repository test suites passed and configured docstring gates passed or were advisory, or reports not applicable because no supported source files or package manifests exist. Missing, failed, skipped, unavailable, or unsupported-tooling test evidence is a blocker.

• Fix: Install or configure the repository test/docstring evidence tooling when source files or package manifests exist, rerun the current-head coverage-evidence job, and approve only after it reports success with required evidence or explicit no-source not-applicable evidence.

• Regression test: Keep the approval branch checking needs.coverage-evidence.result == success before posting APPROVE, and publish REQUEST_CHANGES when coverage-evidence blocker states such as cancelled, skipped, failed, unsupported-tooling, or below-100 evidence are present.

• Result: REQUEST_CHANGES

• Reason: coverage-evidence result was failure, so required test/docstring evidence was not proven for current head 87b66508fb0c6b64f773c7bda76fdab26c00e959.

• Head SHA: 87b66508fb0c6b64f773c7bda76fdab26c00e959

• Workflow run: 29649233860

• Workflow attempt: 1

Coverage evidence

Coverage evidence job did not run or did not publish coverage evidence.

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file: bolt.md"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file: bolt.md"]
  R1 --> V1["required checks"]
  Evidence --> S2["Frontend: export.ts"]
  S2 --> I2["browser runtime and bundle"]
  I2 --> R2["Review risk: Frontend: export.ts"]
  R2 --> V2["frontend tests"]

Loading

[seonghobae]

Closed as superseded/duplicate agent perf micro-optimization; main already has comparable Bolt export/render opts (#561/#538). Commercial-baseline drain: not uniquely required.

[google-labs-jules]

Closed as superseded/duplicate agent perf micro-optimization; main already has comparable Bolt export/render opts (#561/#538). Commercial-baseline drain: not uniquely required.

Understood. Acknowledging that this work is now obsolete and stopping work on this task.