diff --git a/src/QueryPipeline/Pipe.cpp b/src/QueryPipeline/Pipe.cpp
index 6aa10b87328..25c5f7c0781 100644
--- a/src/QueryPipeline/Pipe.cpp
+++ b/src/QueryPipeline/Pipe.cpp
@@ -432,55 +432,6 @@ void Pipe::addTransform(ProcessorPtr transform)
     addTransform(std::move(transform), static_cast<OutputPort *>(nullptr), static_cast<OutputPort *>(nullptr));
 }
 
-void Pipe::addParallelTransforms(Processors transforms)
-{
-    LOG_DEBUG(log, "Begin addParallelTransforms, have {} transforms", transforms.size());
-
-    if (output_ports.empty())
-        throw Exception("Cannot add parallel transforms to empty Pipe.", ErrorCodes::LOGICAL_ERROR);
-
-    std::vector<InputPort *> inputs;
-    std::vector<OutputPort *> outputs;
-    for (const auto & transform : transforms)
-    {
-        auto & current_transform_inputs = transform->getInputs();
-        if (current_transform_inputs.size() != 1)
-            throw Exception("Each parallel transform should have one input port", ErrorCodes::LOGICAL_ERROR);
-
-        inputs.push_back(&(current_transform_inputs.front()));
-
-        auto & current_transform_outputs = transform->getOutputs();
-        if (current_transform_outputs.size() != 1)
-            throw Exception("Each parallel transform should have one output port", ErrorCodes::LOGICAL_ERROR);
-
-        outputs.push_back(&(current_transform_outputs.front()));
-        LOG_DEBUG(log, "addParallelTransforms, added inputs and outputs for processor {}", transform->getName());
-        LOG_DEBUG(log, "output structure: {}", transform->getOutputs().front().getHeader().dumpStructure());
-    }
-
-    if (inputs.size() != output_ports.size())
-        throw Exception("Cannot add parallel transforms to Pipes because " +
-                        std::to_string(transforms.size()) + " transforms were passed, "
-                        "but " + std::to_string(output_ports.size()) + " expected", ErrorCodes::LOGICAL_ERROR);
-
-    for (size_t i = 0; i < inputs.size(); ++i)
-        connect(*output_ports[i], *inputs[i]);
-
-    output_ports = std::move(outputs);
-
-    /// do not check output formats because they are different in case of parallel aggregations
-    LOG_DEBUG(log, "addParallelTransforms do not check format");
-
-    if (collected_processors)
-        collected_processors->insert(collected_processors->end(), transforms.begin(), transforms.end());
-
-    for (auto & transform_ptr : transforms)
-        processors.emplace_back(std::move(transform_ptr));
-
-    /// Should not change streams number, so maybe not need max_parallel_streams update
-    max_parallel_streams = std::max<size_t>(max_parallel_streams, output_ports.size());
-}
-
 void Pipe::addTransform(ProcessorPtr transform, OutputPort * totals, OutputPort * extremes)
 {
     if (output_ports.empty())
diff --git a/src/QueryPipeline/Pipe.h b/src/QueryPipeline/Pipe.h
index 21e8fbfe039..01a5d8bb961 100644
--- a/src/QueryPipeline/Pipe.h
+++ b/src/QueryPipeline/Pipe.h
@@ -64,7 +64,6 @@ public:
     /// Output ports should have same headers.
     /// If totals or extremes are not empty, transform shouldn't change header.
     void addTransform(ProcessorPtr transform);
-    void addParallelTransforms(Processors transform);
     void addTransform(ProcessorPtr transform, OutputPort * totals, OutputPort * extremes);
     void addTransform(ProcessorPtr transform, InputPort * totals, InputPort * extremes);
 
diff --git a/src/QueryPipeline/QueryPipelineBuilder.cpp b/src/QueryPipeline/QueryPipelineBuilder.cpp
index 1377db34daf..40c64046560 100644
--- a/src/QueryPipeline/QueryPipelineBuilder.cpp
+++ b/src/QueryPipeline/QueryPipelineBuilder.cpp
@@ -155,12 +155,6 @@ void QueryPipelineBuilder::transform(const Transformer & transformer)
     pipe.transform(transformer);
 }
 
-void QueryPipelineBuilder::addParallelTransforms(Processors transforms)
-{
-    checkInitializedAndNotCompleted();
-    pipe.addParallelTransforms(transforms);
-}
-
 void QueryPipelineBuilder::setSinks(const Pipe::ProcessorGetterWithStreamKind & getter)
 {
     checkInitializedAndNotCompleted();
diff --git a/src/QueryPipeline/QueryPipelineBuilder.h b/src/QueryPipeline/QueryPipelineBuilder.h
index d920f8a7e81..9e198f45e98 100644
--- a/src/QueryPipeline/QueryPipelineBuilder.h
+++ b/src/QueryPipeline/QueryPipelineBuilder.h
@@ -67,8 +67,6 @@ public:
     /// Transform pipeline in general way.
     void transform(const Transformer & transformer);
 
-    /// Add transforms and connect it to outputs streams
-    void addParallelTransforms(Processors transform);
     /// Add TotalsHavingTransform. Resize pipeline to single input. Adds totals port.
     void addTotalsHavingTransform(ProcessorPtr transform);
     /// Add transform which calculates extremes. This transform adds extremes port and doesn't change inputs number.