{
  "id": "python/flask-sqlalchemy-session-not-removed",
  "signature": "sqlalchemy.exc.InvalidRequestError: This session is in 'committed' state; no further SQL can be emitted within this transaction.",
  "signature_zh": "sqlalchemy.exc.InvalidRequestError: 会话处于'committed'状态；此事务中无法再发出SQL。",
  "regex": "sqlalchemy\\.exc\\.InvalidRequestError:\\ This\\ session\\ is\\ in\\ 'committed'\\ state;\\ no\\ further\\ SQL\\ can\\ be\\ emitted\\ within\\ this\\ transaction\\.",
  "domain": "python",
  "category": "runtime_error",
  "subcategory": null,
  "root_cause": "Calling db.session.commit() inside a request then continuing to use the session without a new transaction.",
  "root_cause_type": "generic",
  "root_cause_zh": "在请求中调用db.session.commit()后继续使用该会话，但未开启新事务。",
  "versions": [
    {
      "version": "2.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "3.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Rollback discards pending changes and does not re-open a usable transaction for the same objects.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Keeps attributes but the session is still in committed state for new queries.",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.9,
      "how": "with db.session.begin():\\n    db.session.add(obj)",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.93,
      "how": "def view():\\n    db.session.add(x)\\n    db.session.commit()\\n    return 'ok'",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.85,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2025-02-18",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}