### Description

Two indices:

**test1**
```
{
    "settings": {
        "routing_path": "event.dataset",
        "index": {
            "mode": "time_series"
        }
    },
    "mappings": {
        "properties": {
            "@timestamp": {
                "type": "date"
            },
            "bytes_counter": {
                "type": "long",
                "time_series_metric": "counter"
            },
            "event": {
                "properties": {
                    "dataset": {
                        "type": "keyword",
                        "time_series_dimension": true
                    }
                }
            }
        }
    }
}
```

with data

```
{ "index": { } }
{ "bytes":123,"@timestamp":123456789, "event.dataset":"x" }
```

**test2**
```
{
    "mappings": {
      "properties": {
        "bytes_counter": {
          "type": "long"
        }
      }
    }
}
```

with no data.

Running `from test* | limit 1` results in 

```
{
    "error": {
        "root_cause": [
            {
                "type": "illegal_argument_exception",
                "reason": "Field type [counter] is not supported"
            }
        ],
        "type": "illegal_argument_exception",
        "reason": "Field type [counter] is not supported"
    },
    "status": 400
}
```

Running `from test* | limit 0` results in

```
{
    "columns": [
        {
            "name": "@timestamp",
            "type": "date"
        },
        {
            "name": "bytes",
            "type": "long"
        },
        {
            "name": "bytes_counter",
            "type": "long"
        },
        {
            "name": "event.dataset",
            "type": "keyword"
        }
    ],
    "values": []
}
```

**Notice above `bytes_counter` as `long`**. Running `from test1 | limit 0` results in

```
{
    "columns": [
        {
            "name": "@timestamp",
            "type": "date"
        },
        {
            "name": "bytes",
            "type": "long"
        },
        {
            "name": "bytes_counter",
            "type": "unsupported"
        },
        {
            "name": "event.dataset",
            "type": "keyword"
        }
    ],
    "values": []
}
```
**Notice now the `bytes_counter` is unsupported**.
In a nutshell, `bytes_counter` is mapped as `long` in both indices, but the additional meta information about test1 variant is that this field is a time series `counter` field which is unsupported. When loading values, the source operator complains that the field is unsupported.
x-pack/plugin/sql/qa/server/src/main/java/org/elasticsearch/xpack/sql/qa/rest/RestSqlTestCase.java
assertTrue(hasText(asyncId));
            
            if (response.getHeader(HEADER_NAME_ASYNC_PARTIAL).equals("true")) {
                
                boolean pollForCompletion = randomBoolean();
                if (pollForCompletion) {
                    Request request = new Request("GET", SQL_ASYNC_STATUS_REST_ENDPOINT + asyncId);
                    Map<String, Object> asyncStatus = null;
                    long millis = 1;
                    for (boolean isRunning = true; isRunning; Thread.sleep(millis *= 2)) {
                        asyncStatus = toMap(client().performRequest(request), null);
                        isRunning = (boolean) asyncStatus.get(IS_RUNNING_NAME);
                    }
                    assertEquals(200, (int) asyncStatus.get("completion_status"));
                    assertEquals(asyncStatus.get(IS_RUNNING_NAME), asyncStatus.get(IS_PARTIAL_NAME));
                    assertEquals(asyncId, asyncStatus.get(ID_NAME));
                }
                
                Request request = new Request("GET", SQL_ASYNC_REST_ENDPOINT + asyncId);
                if (pollForCompletion == false) {
                    request.addParameter(WAIT_FOR_COMPLETION_TIMEOUT_NAME, "1d");
                }
                if (randomBoolean()) {
                    request.addParameter(URL_PARAM_FORMAT, format);
                    if (format.equals("csv")) {
                        csvDelimiter = ';';
                        request.addParameter(URL_PARAM_DELIMITER, URLEncoder.encode(String.valueOf(csvDelimiter), StandardCharsets.UTF_8));
                    }
                } else {
                    request.setOptions(request.getOptions().toBuilder().addHeader("Accept", acceptMap.get(format)));