Делаю curl запрос curl 'http://user:pwd@host?query=SELECT+COUNT()+FROM+db.table&send_progress_in_http_headers=1&wait_end_of_query=1' -v. ` Trying

Question

Делаю curl запрос curl 'http://user:pwd@host?query=SELECT+COUNT()+FROM+db.table&send_progress_in_http_headers=1&wait_end_of_query=1' -v. ` Trying

<ip>...
* TCP_NODELAY set
* Connected to <host> (<ip>) port 8123 (#0)
* Server auth using Basic with user '<user>'
> GET /?query=SELECT+COUNT(*)+FROM+dt.table&send_progress_in_http_headers=1&wait_end_of_query=1 HTTP/1.1
> Host: <host>
> Authorization: Basic <auth>
> User-Agent: curl/7.64.1
> Accept: */*
>
< HTTP/1.1 200 OK
< Content-Type: text/tab-separated-values; charset=UTF-8
< Date: Sat, 17 Apr 2021 15:27:04 GMT
< X-Clickhouse-Query-Id: 1617CFB7F3C6B410
< X-Clickhouse-Server-Display-Name: <name>
< X-Clickhouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0"}
< Content-Length: 8
<
1790220
* Connection #0 to host <host> left intact
* Closing connection 0
почему приходит пустой X-Clickhouse-Summary?