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feat(postcodes/MY): bulk-import 2,933 Malaysia postcodes via Pos Malaysia (#1039)#1456

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feat/postcodes-malaysia
Apr 27, 2026
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feat(postcodes/MY): bulk-import 2,933 Malaysia postcodes via Pos Malaysia (#1039)#1456
dr5hn merged 1 commit into
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feat/postcodes-malaysia

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@dr5hn dr5hn commented Apr 27, 2026

Summary

Adds 2,933 Malaysia postcodes spanning all 16 states and federal
territories of Pos Malaysia's catalogue, redistributed via the
MIT-licensed AsyrafHussin/malaysia-postcodes mirror.

  • Coverage: 100% state resolution.
  • Granularity: city level — one record per (postcode, city)
    pair.

Source & licence

How it works

  • Walks state -> city -> [postcodes] tree.
  • 5-entry STATE_ALIASES bridge handles the Federal Territory Wp
    prefix (Wp Kuala Lumpur -> Kuala Lumpur, etc.) and the Pulau
    Pinang/Penang and Melaka/Malacca exonyms.

Validation

  • python3 -m py_compile clean.
  • 100% of 2,933 codes match country.postal_code_regex (^(\d{5})$).
  • 100% of records resolve a valid state_id whose country_id == 132
    and whose iso2 matches state_code.
  • No auto-managed fields (id, created_at, updated_at, flag).

Test plan

  • Importer compiles and runs on a clean checkout.
  • Cross-reference validator passes (regex + FK + state_code agreement).
  • Idempotent merge verified.
  • CI pipeline green.

Refs #1039.

🤖 Generated with Claude Code

…ysia (#1039)

Source: Pos Malaysia catalogue redistributed via the MIT-licensed
AsyrafHussin/malaysia-postcodes mirror. All 16 states and federal
territories resolve at 100% via case-insensitive name match, with a
5-entry STATE_ALIASES bridge for the Federal Territory "Wp" prefix
and the Pulau Pinang/Penang and Melaka/Malacca exonyms.

Refs #1039.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Copilot AI review requested due to automatic review settings April 27, 2026 13:19
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@dosubot dosubot Bot added the size:XS This PR changes 0-9 lines, ignoring generated files. label Apr 27, 2026
@dosubot dosubot Bot added the enhancement New feature or request label Apr 27, 2026
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CSC Validation Report

PR Format

  • ✅ Description provided
  • ✅ Data source linked
  • ✅ Issue linked (recommended for data changes)
  • ✅ Justification / context provided

Labels applied: data:postcodes, large-contribution

⚠️ Large Contribution

This PR contains 2933 records. Large contributions require manual review.

Schema Validation (2933 records)

✅ All records passed validation

Cross-Reference Validation

✅ 5866 reference(s) verified

Source URL Verification

✅ 2 source URL(s) accessible


All checks passed | Status: Ready for review

@dr5hn dr5hn merged commit 4f397d5 into master Apr 27, 2026
1 check passed
@dr5hn dr5hn deleted the feat/postcodes-malaysia branch April 27, 2026 13:21
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2 participants