Missing Content-Encoding about clickhouse HOT 2 OPEN

diff --git a/src/Server/HTTP/WriteBufferFromHTTPServerResponse.cpp b/src/Server/HTTP/WriteBufferFromHTTPServerResponse.cpp
index 8098671a903..3dd8c67fc0a 100644
--- a/src/Server/HTTP/WriteBufferFromHTTPServerResponse.cpp
+++ b/src/Server/HTTP/WriteBufferFromHTTPServerResponse.cpp
@@ -143,6 +143,10 @@ void WriteBufferFromHTTPServerResponse::onProgress(const Progress & progress)
         accumulated_progress.incrementElapsedNs(progress_watch.elapsed());
         progress_watch.restart();
 
+        /// We do not really care about `initialized` here, as this one just sets a value in a map
+        if (compression_method != CompressionMethod::None)
+            response.set("Content-Encoding", toContentEncodingName(compression_method));
+
         /// Send all common headers before our special progress headers.
         startSendHeaders();
         writeHeaderProgress();