docs(admin): clarify purpose of 64-bit database identifiers

[joshtrichards]

☑️ Resolves

Clarify a bit why administrators may need to convert database identifiers to 64-bit integers.

Changes:

• explains the limitations of 32-bit database identifiers
• describes how identifier exhaustion can affect large installations
• clarifies that 64-bit identifiers provide capacity for future growth
• updates the chapter title to better communicate the conversion’s purpose
• Minor wording adjustments

Follow-up ideas:

• Symptoms

🖼️ Screenshots

✅ Checklist

• I have built the documentation locally and reviewed the output
• Screenshots are included for visual changes
• I have not moved or renamed pages (or added a redirect if I did)
• I have run codespell or similar and addressed any spelling issues

[github-actions]

📖 Documentation Preview

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📄 1 changed documentation page

• admin_manual/configuration_database/bigint_identifiers.rst

Last updated: Tue, 01 Sep 2026 23:59:33 GMT

[joshtrichards]

/backport to stable35

[backportbot]

The backport to stable35 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable35
git pull origin stable35

# Create the new backport branch
git checkout -b backport/15481/stable35

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick ecf29225

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/15481/stable35

Error: Failed to clone repository: Failed to create working tree: error: RPC failed; HTTP 401 curl 22 The requested URL returned error: 401
fatal: expected flush after ref listing

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[joshtrichards]

/backport to stable34

[backportbot]

The backport to stable34 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable34
git pull origin stable34

# Create the new backport branch
git checkout -b backport/15481/stable34

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick ecf29225

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/15481/stable34

Error: Failed to clone repository: Failed to create working tree: error: RPC failed; HTTP 401 curl 22 The requested URL returned error: 401
fatal: expected flush after ref listing

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.