⚡ Performance: N+1 region collection per country in Directory module

[lbajsarowicz]

Performance Issues in Magento_Directory

Findings

#	File	Line(s)	Issue	Consensus Severity
113	Model/ResourceModel/Country/Collection.php	330-341	N+1 Loading: getRegionCollection()->getSize() called per country in loop. Each country triggers separate region collection query.	Medium-High (Claude+Gemini: Critical, Codex: Medium)

Methodology

• Static code analysis cross-validated by 3 AI systems (Claude, Codex gpt-5.4, Gemini 3 Pro)

[m2-assistant]

Hi @lbajsarowicz. Thank you for your report.
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[github-jira-sync-bot]

✅ Jira issue https://jira.corp.adobe.com/browse/AC-16858 is successfully created for this GitHub issue.