{
  "db_name": "PostgreSQL",
  "query": "SELECT * FROM bars WHERE asset_symbol = $1 AND timestamp < $2 AND open IS NOT NULL AND high IS NOT NULL AND low IS NOT NULL AND close IS NOT NULL ORDER BY timestamp DESC LIMIT 1",
  "describe": {
    "columns": [
      {
        "ordinal": 0,
        "name": "timestamp",
        "type_info": "Timestamptz"
      },
      {
        "ordinal": 1,
        "name": "asset_symbol",
        "type_info": "Text"
      },
      {
        "ordinal": 2,
        "name": "open",
        "type_info": "Float8"
      },
      {
        "ordinal": 3,
        "name": "high",
        "type_info": "Float8"
      },
      {
        "ordinal": 4,
        "name": "low",
        "type_info": "Float8"
      },
      {
        "ordinal": 5,
        "name": "close",
        "type_info": "Float8"
      },
      {
        "ordinal": 6,
        "name": "volume",
        "type_info": "Float8"
      },
      {
        "ordinal": 7,
        "name": "num_trades",
        "type_info": "Int8"
      },
      {
        "ordinal": 8,
        "name": "volume_weighted",
        "type_info": "Float8"
      }
    ],
    "parameters": {
      "Left": [
        "Text",
        "Timestamptz"
      ]
    },
    "nullable": [
      false,
      false,
      true,
      true,
      true,
      true,
      false,
      false,
      false
    ]
  },
  "hash": "6d9509cd482fbc022bfd157af8e59a1a32f0fbd8802cfec980e05706fb697b58"
}