docs: document output_plugin_libraries gate

[tsivaprasad]

Summary

This PR documents the new output_plugin_libraries gating on Postgres 16.15/17.11/18.5+ for users

Changes

• Added an "output_plugin_libraries and Postgres Minor Versions" subsection to docs/using/create-db.md, explaining why Postgres 16.15, 17.11, 18.5, and newer minors require spock_output on the output_plugin_libraries allow-list, that the Control Plane sets this automatically per instance, the failure mode on unpatched minors, and how to override via postgresql_conf if needed.

Testing

NA

Checklist

• Documentation updated

PLAT-721

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

View in Codacy

🟢 Metrics 0 complexity · 0 duplication

Metric	Results
Complexity	0
Duplication	0

View in Codacy

_{NEW Get contextual insights on your PRs based on Codacy's metrics, along with PR and Jira context, without leaving GitHub. Enable AI reviewer
TIP This summary will be updated as you push new changes.}

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: af55309e-b011-4f80-93e8-6e669abc4e45

📥 Commits

Reviewing files that changed from the base of the PR and between 70930c4 and e208718.

📒 Files selected for processing (4)

• changes/unreleased/Fixed-20260812-123144.yaml
• docs/using/create-db.md
• server/internal/postgres/gucs.go
• server/internal/postgres/gucs_test.go

---

📝 Walkthrough

Walkthrough

Changes

PostgreSQL output plugin gate

Layer / File(s)	Summary
Update the PostgreSQL 18 version gate server/internal/postgres/gucs.go, server/internal/postgres/gucs_test.go	The minimum PostgreSQL 18 version changes from 18.5 to 18.6. Tests verify behavior below and at the new gate.
Document supported minor versions docs/using/create-db.md, changes/unreleased/Fixed-20260812-123144.yaml	Documentation and release notes describe automatic spock_output configuration, older-version incompatibility, and explicit allow-list configuration.

Poem

A rabbit checks the version gate,
Six point six makes plugins wait.
spock_output joins the list,
Older versions are dismissed.
Docs and tests now match the tune—
Slots can bloom beneath the moon.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the main documentation change for the output_plugin_libraries version gate.
Description check	✅ Passed	The description directly explains the documented PostgreSQL minor-version gating behavior and the related configuration changes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch PLAT-721-set-output-plugin-libraries-for-newer-pg-minor-versions-in-control-plane

Warning

Tools execution failed with the following error:

Failed to run tools: Stream initialization permanently failed: 14 UNAVAILABLE: read ECONNRESET

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}