curl --request PATCH \
  --url https://api.example.com/v1/instances/{instance}/databases/{database}/catalog \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "schemas": [
    {
      "name": "<string>",
      "tables": [
        {
          "name": "<string>",
          "columns": {
            "columns": [
              {
                "name": "<string>",
                "semanticType": "<string>",
                "labels": {},
                "classification": "<string>",
                "objectSchema": {
                  "type": "TYPE_UNSPECIFIED",
                  "structKind": {
                    "properties": {}
                  },
                  "arrayKind": {
                    "kind": "<unknown>"
                  },
                  "semanticType": "<string>"
                }
              }
            ]
          },
          "objectSchema": {
            "type": "TYPE_UNSPECIFIED",
            "structKind": {
              "properties": {}
            },
            "arrayKind": {
              "kind": "<unknown>"
            },
            "semanticType": "<string>"
          },
          "classification": "<string>"
        }
      ]
    }
  ]
}
'

{
  "name": "<string>",
  "schemas": [
    {
      "name": "<string>",
      "tables": [
        {
          "name": "<string>",
          "columns": {
            "columns": [
              {
                "name": "<string>",
                "semanticType": "<string>",
                "labels": {},
                "classification": "<string>",
                "objectSchema": {
                  "type": "TYPE_UNSPECIFIED",
                  "structKind": {
                    "properties": {}
                  },
                  "arrayKind": {
                    "kind": "<unknown>"
                  },
                  "semanticType": "<string>"
                }
              }
            ]
          },
          "objectSchema": {
            "type": "TYPE_UNSPECIFIED",
            "structKind": {
              "properties": {}
            },
            "arrayKind": {
              "kind": "<unknown>"
            },
            "semanticType": "<string>"
          },
          "classification": "<string>"
        }
      ]
    }
  ]
}