{
  "accessed": "2026-07-22",
  "sources": [
    {
      "name": "Laravel Query Builder",
      "url": "https://raw.githubusercontent.com/laravel/framework/1de10d979568ff823606d4980bafb409b8e7ddaa/src/Illuminate/Database/Query/Builder.php",
      "sha256": "e8b889dad2746a5422c79404e9641a204fc7f87789ba1fe37423fddde2d52c9c",
      "required_text": [
        "public function lockForUpdate()",
        "return $this->lock(true);"
      ]
    },
    {
      "name": "PostgreSQL 18.3 MVCC documentation source",
      "url": "https://raw.githubusercontent.com/postgres/postgres/REL_18_3/doc/src/sgml/mvcc.sgml",
      "sha256": "4b7bf77ee0af4b86052330ff2421d567df3604b75fe7d4f522bec84fdea87340",
      "required_text": [
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        "<sect1 id=\"explicit-locking\">",
        "<literal>FOR UPDATE</literal>"
      ]
    }
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}