Fixed bugs 4

Author: GrigoriyPA

ydb/library/yql/dq/runtime/dq_output_channel.cpp

@@ -105,6 +105,9 @@ class TDqOutputChannel : public IDqOutputChannel {
         }
 
         if (!MutableSettings.IsLocalChannel && BlockSplitter && BlockSplitter->ShouldSplitItem(values, width)) {
+            if (Packer.PackedSizeEstimate()) {
+                TryPack(/* force */ true);
+            }
             for (auto&& data : BlockSplitter->SplitItem(values, width)) {
                 DoPushBlock(std::move(data));
             }
@@ -337,7 +340,7 @@ class TDqOutputChannel : public IDqOutputChannel {
 
     TChunkedBuffer FinishPackAndCheckSize() {
         TChunkedBuffer result = Packer.Finish();
-        if (result.Size() > ChunkSizeLimit) {
+        if (!MutableSettings.IsLocalChannel && result.Size() > ChunkSizeLimit) {
             // TODO: may relax requirement if OOB transport is enabled
             ythrow TDqOutputChannelChunkSizeLimitExceeded() << "Row data size is too big: "
                 << result.Size() << " bytes, exceeds limit of " << ChunkSizeLimit << " bytes";