{
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  "item": {
    "id": "METHOD-0373",
    "kind": "METHOD",
    "title": "pgvectorで検証用vector列を距離順に検索する",
    "last_verified": "2026-10-23",
    "currentness": "VERIFIED_AS_OF",
    "revision": 1,
    "requirements": [
      "検証用serverまたは保存先と操作権限",
      "入力schema・キー・vectorの次元と距離尺度を確認する",
      "公式の利用開始案内でpgvectorの対応環境・導入方法・利用条件を確認し、検証用の環境へ用意します。"
    ],
    "suitable_for": "pgvectorで検証用vector列を距離順に検索するという一つの目的を、この利用経路で短く試したい場面。",
    "unsuitable_for": "演算子が異なる距離値を無条件に比較する用途。",
    "purpose": "pgvectorで検証用vector列を距離順に検索する",
    "composition": "pgvector + PostgreSQL",
    "shortest_path": [
      "拡張を使える検証DBと次元を確認する",
      "vector列へ小さな既知データを登録する",
      "距離順のSELECTを手計算例と比較する"
    ],
    "verification": "演算子・距離尺度・NULLとindexの利用条件を確認します。",
    "coverage": [
      "database/SQL",
      "data transformation"
    ],
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    "ads": "OFF",
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      "object_id": "METHOD-0373",
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