{
  "id": {"type": "varchar", "default": ""},
  "message_id": {"type": "integer", "default": 0},
  "message_type_kwd": {"type": "varchar", "default": ""},
  "source_id": {"type":  "integer", "default": 0},
  "memory_id": {"type": "varchar", "default": ""},
  "user_id": {"type": "varchar", "default": ""},
  "agent_id": {"type": "varchar", "default": ""},
  "session_id": {"type": "varchar", "default": ""},
  "valid_at": {"type":  "varchar", "default": ""},
  "valid_at_flt": {"type": "float", "default": 0.0},
  "invalid_at": {"type":  "varchar", "default": ""},
  "invalid_at_flt": {"type": "float", "default": 0.0},
  "forget_at": {"type":  "varchar", "default": ""},
  "forget_at_flt": {"type": "float", "default": 0.0},
  "status_int": {"type": "integer", "default": 1},
  "zone_id": {"type": "integer", "default": 0},
  "content": {"type": "varchar", "default": "", "analyzer": ["rag-coarse", "rag-fine"], "comment": "content_ltks"}
}