Intermediate changes

1 files changed, 7 insertions, 1 deletions

diff --git a/yt/yt/library/formats/web_json_writer.cpp b/yt/yt/library/formats/web_json_writer.cpp
index 9233f55c6f..0539ed6cec 100644
--- a/yt/yt/library/formats/web_json_writer.cpp
+++ b/yt/yt/library/formats/web_json_writer.cpp
@@ -60,6 +60,11 @@ public:
         return AcceptByMaxCount(columnId);
     }
 
+    bool IsRequestedColumnName(TStringBuf columnName)
+    {
+        return Names_ && AcceptByNames(columnName);
+    }
+
 private:
     const int MaxSelectedColumnCount_;
     std::optional<THashSet<TString>> Names_;
@@ -611,7 +616,8 @@ TFuture<void> TWriterForWebJson<TValueWriter>::Flush()
 template <typename TValueWriter>
 bool TWriterForWebJson<TValueWriter>::TryRegisterColumn(ui16 columnId, TStringBuf columnName)
 {
-    if (SkipSystemColumn(columnName)) {
+    // Don't skip system column if it was requested.
+    if (SkipSystemColumn(columnName) && !ColumnFilter_.IsRequestedColumnName(columnName)) {
         return false;
     }