diff --git a/programs/copier/Internals.cpp b/programs/copier/Internals.cpp
index c5e702cd1dc..84283777c8f 100644
--- a/programs/copier/Internals.cpp
+++ b/programs/copier/Internals.cpp
@@ -57,14 +57,6 @@ std::shared_ptr<ASTStorage> createASTStorageDistributed(
 }
 
 
-BlockInputStreamPtr squashStreamIntoOneBlock(const BlockInputStreamPtr & stream)
-{
-    return std::make_shared<SquashingBlockInputStream>(
-            stream,
-            std::numeric_limits<size_t>::max(),
-            std::numeric_limits<size_t>::max());
-}
-
 Block getBlockWithAllStreamData(QueryPipeline pipeline)
 {
     QueryPipelineBuilder builder;
diff --git a/programs/copier/Internals.h b/programs/copier/Internals.h
index 9e648060592..a9d8ca726fe 100644
--- a/programs/copier/Internals.h
+++ b/programs/copier/Internals.h
@@ -50,8 +50,6 @@
 #include <Parsers/ASTExpressionList.h>
 #include <Formats/FormatSettings.h>
 #include <DataStreams/RemoteQueryExecutor.h>
-#include <DataStreams/SquashingBlockInputStream.h>
-#include <DataStreams/copyData.h>
 #include <IO/ConnectionTimeouts.h>
 #include <IO/Operators.h>
 #include <IO/ReadBufferFromString.h>
diff --git a/programs/library-bridge/Handlers.cpp b/programs/library-bridge/Handlers.cpp
index 2f6dca5ee65..abc5118baad 100644
--- a/programs/library-bridge/Handlers.cpp
+++ b/programs/library-bridge/Handlers.cpp
@@ -1,7 +1,6 @@
 #include "Handlers.h"
 #include "SharedLibraryHandlerFactory.h"
 
-#include <DataStreams/copyData.h>
 #include <Formats/FormatFactory.h>
 #include <Server/HTTP/WriteBufferFromHTTPServerResponse.h>
 #include <IO/WriteHelpers.h>
@@ -10,11 +9,13 @@
 #include <Poco/Net/HTTPServerResponse.h>
 #include <Poco/Net/HTMLForm.h>
 #include <Poco/ThreadPool.h>
-#include <Processors/Formats/InputStreamFromInputFormat.h>
 #include <Processors/Formats/IOutputFormat.h>
+#include <Processors/Formats/IInputFormat.h>
 #include <Processors/QueryPipeline.h>
 #include <Processors/Executors/CompletedPipelineExecutor.h>
+#include <Processors/Executors/PullingPipelineExecutor.h>
 #include <Processors/Sources/SourceFromSingleChunk.h>
+#include <Processors/Pipe.h>
 #include <Server/HTTP/HTMLForm.h>
 #include <IO/ReadBufferFromString.h>
 
@@ -189,8 +190,10 @@ void LibraryRequestHandler::handleRequest(HTTPServerRequest & request, HTTPServe
 
             ReadBufferFromString read_block_buf(params.get("null_values"));
             auto format = getContext()->getInputFormat(FORMAT, read_block_buf, *sample_block, DEFAULT_BLOCK_SIZE);
-            auto reader = std::make_shared<InputStreamFromInputFormat>(format);
-            auto sample_block_with_nulls = reader->read();
+            QueryPipeline pipeline(Pipe(std::move(format)));
+            PullingPipelineExecutor executor(pipeline);
+            Block sample_block_with_nulls;
+            executor.pull(sample_block_with_nulls);
 
             LOG_DEBUG(log, "Dictionary sample block with null values: {}", sample_block_with_nulls.dumpStructure());
 
@@ -281,8 +284,10 @@ void LibraryRequestHandler::handleRequest(HTTPServerRequest & request, HTTPServe
 
             auto & read_buf = request.getStream();
             auto format = getContext()->getInputFormat(FORMAT, read_buf, *requested_sample_block, DEFAULT_BLOCK_SIZE);
-            auto reader = std::make_shared<InputStreamFromInputFormat>(format);
-            auto block = reader->read();
+            QueryPipeline pipeline(std::move(format));
+            PullingPipelineExecutor executor(pipeline);
+            Block block;
+            executor.pull(block);
 
             auto library_handler = SharedLibraryHandlerFactory::instance().get(dictionary_id);
             if (!library_handler)
diff --git a/programs/library-bridge/SharedLibraryHandler.h b/programs/library-bridge/SharedLibraryHandler.h
index f9d2fe43cb2..de1d098dc8d 100644
--- a/programs/library-bridge/SharedLibraryHandler.h
+++ b/programs/library-bridge/SharedLibraryHandler.h
@@ -2,7 +2,6 @@
 
 #include <Common/SharedLibrary.h>
 #include <base/logger_useful.h>
-#include <DataStreams/OneBlockInputStream.h>
 #include "LibraryUtils.h"
 
 
diff --git a/programs/odbc-bridge/MainHandler.cpp b/programs/odbc-bridge/MainHandler.cpp
index 51abe207095..6a2e967d179 100644
--- a/programs/odbc-bridge/MainHandler.cpp
+++ b/programs/odbc-bridge/MainHandler.cpp
@@ -4,7 +4,6 @@
 #include "ODBCBlockInputStream.h"
 #include "ODBCBlockOutputStream.h"
 #include "getIdentifierQuote.h"
-#include <DataStreams/copyData.h>
 #include <DataTypes/DataTypeFactory.h>
 #include <Formats/FormatFactory.h>
 #include <Server/HTTP/WriteBufferFromHTTPServerResponse.h>
diff --git a/src/Client/IServerConnection.h b/src/Client/IServerConnection.h
index 5584cf72bbf..42886c72182 100644
--- a/src/Client/IServerConnection.h
+++ b/src/Client/IServerConnection.h
@@ -6,7 +6,6 @@
 #include <Core/Block.h>
 #include <Core/Protocol.h>
 
-#include <DataStreams/IBlockStream_fwd.h>
 #include <DataStreams/BlockStreamProfileInfo.h>
 
 #include <Processors/Pipe.h>
diff --git a/src/Core/ExternalTable.cpp b/src/Core/ExternalTable.cpp
index 7619d60d84e..4dd8b0cf016 100644
--- a/src/Core/ExternalTable.cpp
+++ b/src/Core/ExternalTable.cpp
@@ -1,5 +1,4 @@
 #include <boost/program_options.hpp>
-#include <DataStreams/IBlockOutputStream.h>
 #include <DataTypes/DataTypeFactory.h>
 #include <Storages/IStorage.h>
 #include <Storages/ColumnsDescription.h>
diff --git a/src/DataStreams/BlockStreamProfileInfo.cpp b/src/DataStreams/BlockStreamProfileInfo.cpp
index 09ad8a8e4ac..9a06d905223 100644
--- a/src/DataStreams/BlockStreamProfileInfo.cpp
+++ b/src/DataStreams/BlockStreamProfileInfo.cpp
@@ -1,5 +1,4 @@
 #include <DataStreams/BlockStreamProfileInfo.h>
-#include <DataStreams/IBlockInputStream.h>
 
 #include <IO/ReadHelpers.h>
 #include <IO/WriteHelpers.h>
@@ -47,16 +46,12 @@ void BlockStreamProfileInfo::setFrom(const BlockStreamProfileInfo & rhs, bool sk
 
 size_t BlockStreamProfileInfo::getRowsBeforeLimit() const
 {
-    if (!calculated_rows_before_limit)
-        calculateRowsBeforeLimit();
     return rows_before_limit;
 }
 
 
 bool BlockStreamProfileInfo::hasAppliedLimit() const
 {
-    if (!calculated_rows_before_limit)
-        calculateRowsBeforeLimit();
     return applied_limit;
 }
 
@@ -73,74 +68,4 @@ void BlockStreamProfileInfo::update(size_t num_rows, size_t num_bytes)
     bytes += num_bytes;
 }
 
-
-void BlockStreamProfileInfo::collectInfosForStreamsWithName(const char * name, BlockStreamProfileInfos & res) const
-{
-    if (!parent)
-        return;
-
-    if (parent->getName() == name)
-    {
-        res.push_back(this);
-        return;
-    }
-
-    parent->forEachChild([&] (IBlockInputStream & child)
-    {
-        child.getProfileInfo().collectInfosForStreamsWithName(name, res);
-        return false;
-    });
-}
-
-
-void BlockStreamProfileInfo::calculateRowsBeforeLimit() const
-{
-    calculated_rows_before_limit = true;
-
-    /// is there a Limit?
-    BlockStreamProfileInfos limits;
-    collectInfosForStreamsWithName("Limit", limits);
-
-    if (!limits.empty())
-    {
-        applied_limit = true;
-
-        /** Take the number of lines read below `PartialSorting`, if any, or below `Limit`.
-          * This is necessary, because sorting can return only part of the rows.
-          */
-        BlockStreamProfileInfos partial_sortings;
-        collectInfosForStreamsWithName("PartialSorting", partial_sortings);
-
-        BlockStreamProfileInfos & limits_or_sortings = partial_sortings.empty() ? limits : partial_sortings;
-
-        for (const BlockStreamProfileInfo * info_limit_or_sort : limits_or_sortings)
-        {
-            info_limit_or_sort->parent->forEachChild([&] (IBlockInputStream & child)
-            {
-                rows_before_limit += child.getProfileInfo().rows;
-                return false;
-            });
-        }
-    }
-    else
-    {
-        /// Then the data about `rows_before_limit` can be in `RemoteBlockInputStream` (come from a remote server).
-        BlockStreamProfileInfos remotes;
-        collectInfosForStreamsWithName("Remote", remotes);
-        collectInfosForStreamsWithName("TreeExecutor", remotes);
-
-        if (remotes.empty())
-            return;
-
-        for (const auto & info : remotes)
-        {
-            if (info->applied_limit)
-            {
-                applied_limit = true;
-                rows_before_limit += info->rows_before_limit;
-            }
-        }
-    }
-}
-
 }
diff --git a/src/DataStreams/BlockStreamProfileInfo.h b/src/DataStreams/BlockStreamProfileInfo.h
index 688bdfc91fc..1707b941445 100644
--- a/src/DataStreams/BlockStreamProfileInfo.h
+++ b/src/DataStreams/BlockStreamProfileInfo.h
@@ -1,7 +1,6 @@
 #pragma once
 
 #include <base/types.h>
-#include <DataStreams/IBlockStream_fwd.h>
 #include <Common/Stopwatch.h>
 
 #include <vector>
@@ -16,9 +15,6 @@ class WriteBuffer;
 /// Information for profiling. See IBlockInputStream.h
 struct BlockStreamProfileInfo
 {
-    /// Info about stream object this profile info refers to.
-    IBlockInputStream * parent = nullptr;
-
     bool started = false;
     Stopwatch total_stopwatch {CLOCK_MONOTONIC_COARSE};    /// Time with waiting time
 
@@ -28,9 +24,6 @@ struct BlockStreamProfileInfo
 
     using BlockStreamProfileInfos = std::vector<const BlockStreamProfileInfo *>;
 
-    /// Collect BlockStreamProfileInfo for the nearest sources in the tree named `name`. Example; collect all info for PartialSorting streams.
-    void collectInfosForStreamsWithName(const char * name, BlockStreamProfileInfos & res) const;
-
     /** Get the number of rows if there were no LIMIT.
       * If there is no LIMIT, 0 is returned.
       * If the query does not contain ORDER BY, the number can be underestimated - return the number of rows in blocks that were read before LIMIT reached.
@@ -59,8 +52,6 @@ struct BlockStreamProfileInfo
     }
 
 private:
-    void calculateRowsBeforeLimit() const;
-
     /// For these fields we make accessors, because they must be calculated beforehand.
     mutable bool applied_limit = false;                    /// Whether LIMIT was applied
     mutable size_t rows_before_limit = 0;
diff --git a/src/DataStreams/IBlockInputStream.cpp b/src/DataStreams/IBlockInputStream.cpp
deleted file mode 100644
index e57d6903673..00000000000
--- a/src/DataStreams/IBlockInputStream.cpp
+++ /dev/null
@@ -1,359 +0,0 @@
-#include <DataStreams/IBlockInputStream.h>
-
-#include <Core/Field.h>
-#include <Interpreters/ProcessList.h>
-#include <Access/EnabledQuota.h>
-#include <Common/CurrentThread.h>
-#include <IO/WriteBufferFromString.h>
-#include <IO/Operators.h>
-
-namespace ProfileEvents
-{
-    extern const Event ThrottlerSleepMicroseconds;
-    extern const Event SelectedRows;
-    extern const Event SelectedBytes;
-}
-
-
-namespace DB
-{
-
-namespace ErrorCodes
-{
-    extern const int QUERY_WAS_CANCELLED;
-    extern const int TOO_MANY_ROWS;
-    extern const int TOO_MANY_BYTES;
-    extern const int TOO_MANY_ROWS_OR_BYTES;
-    extern const int LOGICAL_ERROR;
-}
-
-
-/// It's safe to access children without mutex as long as these methods are called before first call to `read()` or `readPrefix()`.
-
-
-Block IBlockInputStream::read()
-{
-    if (total_rows_approx)
-    {
-        progressImpl(Progress(0, 0, total_rows_approx));
-        total_rows_approx = 0;
-    }
-
-    if (!info.started)
-    {
-        info.total_stopwatch.start();
-        info.started = true;
-    }
-
-    Block res;
-
-    if (isCancelledOrThrowIfKilled())
-        return res;
-
-    if (!checkTimeLimit())
-        limit_exceeded_need_break = true;
-
-    if (!limit_exceeded_need_break)
-        res = readImpl();
-
-    if (res)
-    {
-        info.update(res);
-
-        if (enabled_extremes)
-            updateExtremes(res);
-
-        if (limits.mode == LimitsMode::LIMITS_CURRENT && !limits.size_limits.check(info.rows, info.bytes, "result", ErrorCodes::TOO_MANY_ROWS_OR_BYTES))
-            limit_exceeded_need_break = true;
-
-        if (quota)
-            checkQuota(res);
-    }
-    else
-    {
-        /** If the stream is over, then we will ask all children to abort the execution.
-          * This makes sense when running a query with LIMIT
-          * - there is a situation when all the necessary data has already been read,
-          *   but children sources are still working,
-          *   herewith they can work in separate threads or even remotely.
-          */
-        cancel(false);
-    }
-
-    progress(Progress(res.rows(), res.bytes()));
-
-#ifndef NDEBUG
-    if (res)
-    {
-        Block header = getHeader();
-        if (header)
-            assertBlocksHaveEqualStructure(res, header, getName());
-    }
-#endif
-
-    return res;
-}
-
-
-void IBlockInputStream::readPrefix()
-{
-#ifndef NDEBUG
-    if (!read_prefix_is_called)
-        read_prefix_is_called = true;
-    else
-        throw Exception("readPrefix is called twice for " + getName() + " stream", ErrorCodes::LOGICAL_ERROR);
-#endif
-
-    readPrefixImpl();
-
-    forEachChild([&] (IBlockInputStream & child)
-    {
-        child.readPrefix();
-        return false;
-    });
-}
-
-
-void IBlockInputStream::readSuffix()
-{
-#ifndef NDEBUG
-    if (!read_suffix_is_called)
-        read_suffix_is_called = true;
-    else
-        throw Exception("readSuffix is called twice for " + getName() + " stream", ErrorCodes::LOGICAL_ERROR);
-#endif
-
-    forEachChild([&] (IBlockInputStream & child)
-    {
-        child.readSuffix();
-        return false;
-    });
-
-    readSuffixImpl();
-}
-
-
-void IBlockInputStream::updateExtremes(Block & block)
-{
-    size_t num_columns = block.columns();
-
-    if (!extremes)
-    {
-        MutableColumns extremes_columns(num_columns);
-
-        for (size_t i = 0; i < num_columns; ++i)
-        {
-            const ColumnPtr & src = block.safeGetByPosition(i).column;
-
-            if (isColumnConst(*src))
-            {
-                /// Equal min and max.
-                extremes_columns[i] = src->cloneResized(2);
-            }
-            else
-            {
-                Field min_value;
-                Field max_value;
-
-                src->getExtremes(min_value, max_value);
-
-                extremes_columns[i] = src->cloneEmpty();
-
-                extremes_columns[i]->insert(min_value);
-                extremes_columns[i]->insert(max_value);
-            }
-        }
-
-        extremes = block.cloneWithColumns(std::move(extremes_columns));
-    }
-    else
-    {
-        for (size_t i = 0; i < num_columns; ++i)
-        {
-            ColumnPtr & old_extremes = extremes.safeGetByPosition(i).column;
-
-            if (isColumnConst(*old_extremes))
-                continue;
-
-            Field min_value = (*old_extremes)[0];
-            Field max_value = (*old_extremes)[1];
-
-            Field cur_min_value;
-            Field cur_max_value;
-
-            block.safeGetByPosition(i).column->getExtremes(cur_min_value, cur_max_value);
-
-            if (cur_min_value < min_value)
-                min_value = cur_min_value;
-            if (cur_max_value > max_value)
-                max_value = cur_max_value;
-
-            MutableColumnPtr new_extremes = old_extremes->cloneEmpty();
-
-            new_extremes->insert(min_value);
-            new_extremes->insert(max_value);
-
-            old_extremes = std::move(new_extremes);
-        }
-    }
-}
-
-
-bool IBlockInputStream::checkTimeLimit() const
-{
-    return limits.speed_limits.checkTimeLimit(info.total_stopwatch, limits.timeout_overflow_mode);
-}
-
-
-void IBlockInputStream::checkQuota(Block & block)
-{
-    switch (limits.mode)
-    {
-        case LimitsMode::LIMITS_TOTAL:
-            /// Checked in `progress` method.
-            break;
-
-        case LimitsMode::LIMITS_CURRENT:
-        {
-            UInt64 total_elapsed = info.total_stopwatch.elapsedNanoseconds();
-            quota->used({Quota::RESULT_ROWS, block.rows()}, {Quota::RESULT_BYTES, block.bytes()}, {Quota::EXECUTION_TIME, total_elapsed - prev_elapsed});
-            prev_elapsed = total_elapsed;
-            break;
-        }
-    }
-}
-
-
-void IBlockInputStream::progressImpl(const Progress & value)
-{
-    if (progress_callback)
-        progress_callback(value);
-
-    if (process_list_elem)
-    {
-        if (!process_list_elem->updateProgressIn(value))
-            cancel(/* kill */ true);
-
-        /// The total amount of data processed or intended for processing in all leaf sources, possibly on remote servers.
-
-        ProgressValues progress = process_list_elem->getProgressIn();
-        size_t total_rows_estimate = std::max(progress.read_rows, progress.total_rows_to_read);
-
-        /** Check the restrictions on the amount of data to read, the speed of the query, the quota on the amount of data to read.
-            * NOTE: Maybe it makes sense to have them checked directly in ProcessList?
-            */
-        if (limits.mode == LimitsMode::LIMITS_TOTAL)
-        {
-            if (!limits.size_limits.check(total_rows_estimate, progress.read_bytes, "rows to read",
-                                         ErrorCodes::TOO_MANY_ROWS, ErrorCodes::TOO_MANY_BYTES))
-                cancel(false);
-        }
-
-        size_t total_rows = progress.total_rows_to_read;
-
-        constexpr UInt64 profile_events_update_period_microseconds = 10 * 1000; // 10 milliseconds
-        UInt64 total_elapsed_microseconds = info.total_stopwatch.elapsedMicroseconds();
-
-        if (last_profile_events_update_time + profile_events_update_period_microseconds < total_elapsed_microseconds)
-        {
-            CurrentThread::updatePerformanceCounters();
-            last_profile_events_update_time = total_elapsed_microseconds;
-        }
-
-        limits.speed_limits.throttle(progress.read_rows, progress.read_bytes, total_rows, total_elapsed_microseconds);
-
-        if (quota && limits.mode == LimitsMode::LIMITS_TOTAL)
-            quota->used({Quota::READ_ROWS, value.read_rows}, {Quota::READ_BYTES, value.read_bytes});
-    }
-
-    ProfileEvents::increment(ProfileEvents::SelectedRows, value.read_rows);
-    ProfileEvents::increment(ProfileEvents::SelectedBytes, value.read_bytes);
-}
-
-
-void IBlockInputStream::cancel(bool kill)
-{
-    if (kill)
-        is_killed = true;
-
-    bool old_val = false;
-    if (!is_cancelled.compare_exchange_strong(old_val, true, std::memory_order_seq_cst, std::memory_order_relaxed))
-        return;
-
-    forEachChild([&] (IBlockInputStream & child)
-    {
-        child.cancel(kill);
-        return false;
-    });
-}
-
-
-bool IBlockInputStream::isCancelled() const
-{
-    return is_cancelled;
-}
-
-bool IBlockInputStream::isCancelledOrThrowIfKilled() const
-{
-    if (!is_cancelled)
-        return false;
-    if (is_killed)
-        throw Exception("Query was cancelled", ErrorCodes::QUERY_WAS_CANCELLED);
-    return true;
-}
-
-
-void IBlockInputStream::setProgressCallback(const ProgressCallback & callback)
-{
-    progress_callback = callback;
-
-    forEachChild([&] (IBlockInputStream & child)
-    {
-        child.setProgressCallback(callback);
-        return false;
-    });
-}
-
-
-void IBlockInputStream::setProcessListElement(QueryStatus * elem)
-{
-    process_list_elem = elem;
-
-    forEachChild([&] (IBlockInputStream & child)
-    {
-        child.setProcessListElement(elem);
-        return false;
-    });
-}
-
-
-Block IBlockInputStream::getTotals()
-{
-    if (totals)
-        return totals;
-
-    Block res;
-    forEachChild([&] (IBlockInputStream & child)
-    {
-        res = child.getTotals();
-        return bool(res);
-    });
-    return res;
-}
-
-
-Block IBlockInputStream::getExtremes()
-{
-    if (extremes)
-        return extremes;
-
-    Block res;
-    forEachChild([&] (IBlockInputStream & child)
-    {
-        res = child.getExtremes();
-        return bool(res);
-    });
-    return res;
-}
-
-}
diff --git a/src/DataStreams/IBlockInputStream.h b/src/DataStreams/IBlockInputStream.h
deleted file mode 100644
index 0e77ba81779..00000000000
--- a/src/DataStreams/IBlockInputStream.h
+++ /dev/null
@@ -1,271 +0,0 @@
-#pragma once
-
-#include <Core/Block.h>
-#include <DataStreams/BlockStreamProfileInfo.h>
-#include <DataStreams/ExecutionSpeedLimits.h>
-#include <DataStreams/SizeLimits.h>
-#include <DataStreams/StreamLocalLimits.h>
-#include <IO/Progress.h>
-#include <Storages/TableLockHolder.h>
-#include <Common/TypePromotion.h>
-
-#include <atomic>
-#include <shared_mutex>
-
-
-namespace DB
-{
-
-namespace ErrorCodes
-{
-}
-
-class ProcessListElement;
-class EnabledQuota;
-class QueryStatus;
-
-
-/** The stream interface for reading data by blocks from the database.
-  * Relational operations are supposed to be done also as implementations of this interface.
-  * Watches out at how the source of the blocks works.
-  * Lets you get information for profiling: rows per second, blocks per second, megabytes per second, etc.
-  * Allows you to stop reading data (in nested sources).
-  */
-class IBlockInputStream : public TypePromotion<IBlockInputStream>
-{
-    friend struct BlockStreamProfileInfo;
-
-public:
-    IBlockInputStream() { info.parent = this; }
-    virtual ~IBlockInputStream() = default;
-
-    IBlockInputStream(const IBlockInputStream &) = delete;
-    IBlockInputStream & operator=(const IBlockInputStream &) = delete;
-
-    /// To output the data stream transformation tree (query execution plan).
-    virtual String getName() const = 0;
-
-    /** Get data structure of the stream in a form of "header" block (it is also called "sample block").
-      * Header block contains column names, data types, columns of size 0. Constant columns must have corresponding values.
-      * It is guaranteed that method "read" returns blocks of exactly that structure.
-      */
-    virtual Block getHeader() const = 0;
-
-    virtual const BlockMissingValues & getMissingValues() const
-    {
-        static const BlockMissingValues none;
-        return none;
-    }
-
-    /** Read next block.
-      * If there are no more blocks, return an empty block (for which operator `bool` returns false).
-      * NOTE: Only one thread can read from one instance of IBlockInputStream simultaneously.
-      * This also applies for readPrefix, readSuffix.
-      */
-    Block read();
-
-    /** Read something before starting all data or after the end of all data.
-      * In the `readSuffix` function, you can implement a finalization that can lead to an exception.
-      * readPrefix() must be called before the first call to read().
-      * readSuffix() should be called after read() returns an empty block, or after a call to cancel(), but not during read() execution.
-      */
-
-    /** The default implementation calls readPrefixImpl() on itself, and then readPrefix() recursively for all children.
-      * There are cases when you do not want `readPrefix` of children to be called synchronously, in this function,
-      *  but you want them to be called, for example, in separate threads (for parallel initialization of children).
-      * Then overload `readPrefix` function.
-      */
-    virtual void readPrefix();
-
-    /** The default implementation calls recursively readSuffix() on all children, and then readSuffixImpl() on itself.
-      * If this stream calls read() in children in a separate thread, this behavior is usually incorrect:
-      * readSuffix() of the child can not be called at the moment when the same child's read() is executed in another thread.
-      * In this case, you need to override this method so that readSuffix() in children is called, for example, after connecting streams.
-      */
-    virtual void readSuffix();
-
-    /// Do not allow to change the table while the blocks stream and its children are alive.
-    void addTableLock(const TableLockHolder & lock) { table_locks.push_back(lock); }
-
-    /// Get information about execution speed.
-    const BlockStreamProfileInfo & getProfileInfo() const { return info; }
-
-    /** Get "total" values.
-      * The default implementation takes them from itself or from the first child source in which they are.
-      * The overridden method can perform some calculations. For example, apply an expression to the `totals` of the child source.
-      * There can be no total values - then an empty block is returned.
-      *
-      * Call this method only after all the data has been retrieved with `read`,
-      *  otherwise there will be problems if any data at the same time is computed in another thread.
-      */
-    virtual Block getTotals();
-
-    /// The same for minimums and maximums.
-    virtual Block getExtremes();
-
-
-    /** Set the execution progress bar callback.
-      * The callback is passed to all child sources.
-      * By default, it is called for leaf sources, after each block.
-      * (But this can be overridden in the progress() method)
-      * The function takes the number of rows in the last block, the number of bytes in the last block.
-      * Note that the callback can be called from different threads.
-      */
-    virtual void setProgressCallback(const ProgressCallback & callback);
-
-
-    /** In this method:
-      * - the progress callback is called;
-      * - the status of the query execution in ProcessList is updated;
-      * - checks restrictions and quotas that should be checked not within the same source,
-      *   but over the total amount of resources spent in all sources at once (information in the ProcessList).
-      */
-    virtual void progress(const Progress & value)
-    {
-        /// The data for progress is taken from leaf sources.
-        if (children.empty())
-            progressImpl(value);
-    }
-
-    void progressImpl(const Progress & value);
-
-
-    /** Set the pointer to the process list item.
-      * It is passed to all child sources.
-      * General information about the resources spent on the request will be written into it.
-      * Based on this information, the quota and some restrictions will be checked.
-      * This information will also be available in the SHOW PROCESSLIST request.
-      */
-    virtual void setProcessListElement(QueryStatus * elem);
-
-    /** Set the approximate total number of rows to read.
-      */
-    void addTotalRowsApprox(size_t value) { total_rows_approx += value; }
-
-
-    /** Ask to abort the receipt of data as soon as possible.
-      * By default - just sets the flag is_cancelled and asks that all children be interrupted.
-      * This function can be called several times, including simultaneously from different threads.
-      * Have two modes:
-      *  with kill = false only is_cancelled is set - streams will stop silently with returning some processed data.
-      *  with kill = true also is_killed set - queries will stop with exception.
-      */
-    virtual void cancel(bool kill);
-
-    bool isCancelled() const;
-    bool isCancelledOrThrowIfKilled() const;
-
-    /** Set limitations that checked on each block. */
-    virtual void setLimits(const StreamLocalLimits & limits_)
-    {
-        limits = limits_;
-    }
-
-    const StreamLocalLimits & getLimits() const
-    {
-        return limits;
-    }
-
-    /** Set the quota. If you set a quota on the amount of raw data,
-      * then you should also set mode = LIMITS_TOTAL to LocalLimits with setLimits.
-      */
-    virtual void setQuota(const std::shared_ptr<const EnabledQuota> & new_quota)
-    {
-        quota = new_quota;
-    }
-
-    /// Enable calculation of minimums and maximums by the result columns.
-    void enableExtremes() { enabled_extremes = true; }
-
-protected:
-    /// Order is important: `table_locks` must be destroyed after `children` so that tables from
-    /// which child streams read are protected by the locks during the lifetime of the child streams.
-    std::vector<TableLockHolder> table_locks;
-
-    BlockInputStreams children;
-    std::shared_mutex children_mutex;
-
-    BlockStreamProfileInfo info;
-    std::atomic<bool> is_cancelled{false};
-    std::atomic<bool> is_killed{false};
-    ProgressCallback progress_callback;
-    QueryStatus * process_list_elem = nullptr;
-    /// According to total_stopwatch in microseconds
-    UInt64 last_profile_events_update_time = 0;
-
-    /// Additional information that can be generated during the work process.
-
-    /// Total values during aggregation.
-    Block totals;
-    /// Minimums and maximums. The first row of the block - minimums, the second - the maximums.
-    Block extremes;
-
-
-    void addChild(const BlockInputStreamPtr & child)
-    {
-        std::unique_lock lock(children_mutex);
-        children.push_back(child);
-    }
-
-    /** Check limits.
-      * But only those that can be checked within each separate stream.
-      */
-    bool checkTimeLimit() const;
-
-#ifndef NDEBUG
-    bool read_prefix_is_called = false;
-    bool read_suffix_is_called = false;
-#endif
-
-private:
-    bool enabled_extremes = false;
-
-    /// The limit on the number of rows/bytes has been exceeded, and you need to stop execution on the next `read` call, as if the thread has run out.
-    bool limit_exceeded_need_break = false;
-
-    /// Limitations and quotas.
-
-    StreamLocalLimits limits;
-
-    std::shared_ptr<const EnabledQuota> quota;    /// If nullptr - the quota is not used.
-    UInt64 prev_elapsed = 0;
-
-    /// The approximate total number of rows to read. For progress bar.
-    size_t total_rows_approx = 0;
-
-    /// Derived classes must implement this function.
-    virtual Block readImpl() = 0;
-
-    /// Here you can do a preliminary initialization.
-    virtual void readPrefixImpl() {}
-
-    /// Here you need to do a finalization, which can lead to an exception.
-    virtual void readSuffixImpl() {}
-
-    void updateExtremes(Block & block);
-
-    /** Check quotas.
-      * But only those that can be checked within each separate stream.
-      */
-    void checkQuota(Block & block);
-
-    size_t checkDepthImpl(size_t max_depth, size_t level) const;
-
-    template <typename F>
-    void forEachChild(F && f)
-    {
-        /// NOTE: Acquire a read lock, therefore f() should be thread safe
-        std::shared_lock lock(children_mutex);
-
-        // Reduce lock scope and avoid recursive locking since that is undefined for shared_mutex.
-        const auto children_copy = children;
-        lock.unlock();
-
-        for (auto & child : children_copy)
-            if (f(*child))
-                return;
-    }
-
-};
-
-}
diff --git a/src/DataStreams/IBlockOutputStream.h b/src/DataStreams/IBlockOutputStream.h
deleted file mode 100644
index 65ebd90769d..00000000000
--- a/src/DataStreams/IBlockOutputStream.h
+++ /dev/null
@@ -1,70 +0,0 @@
-#pragma once
-
-#include <Core/Block.h>
-#include <DataStreams/IBlockStream_fwd.h>
-#include <Storages/TableLockHolder.h>
-
-#include <boost/noncopyable.hpp>
-
-#include <memory>
-#include <string>
-#include <vector>
-
-
-namespace DB
-{
-
-struct Progress;
-
-/** Interface of stream for writing data (into table, filesystem, network, terminal, etc.)
-  */
-class IBlockOutputStream : private boost::noncopyable
-{
-public:
-    IBlockOutputStream() = default;
-
-    /** Get data structure of the stream in a form of "header" block (it is also called "sample block").
-      * Header block contains column names, data types, columns of size 0. Constant columns must have corresponding values.
-      * You must pass blocks of exactly this structure to the 'write' method.
-      */
-    virtual Block getHeader() const = 0;
-
-    /** Write block.
-      */
-    virtual void write(const Block & block) = 0;
-
-    /** Write or do something before all data or after all data.
-      */
-    virtual void writePrefix() {}
-    virtual void writeSuffix() {}
-
-    /** Flush output buffers if any.
-      */
-    virtual void flush() {}
-
-    /** Methods to set additional information for output in formats, that support it.
-      */
-    virtual void setRowsBeforeLimit(size_t /*rows_before_limit*/) {}
-    virtual void setTotals(const Block & /*totals*/) {}
-    virtual void setExtremes(const Block & /*extremes*/) {}
-
-    /** Notify about progress. Method could be called from different threads.
-      * Passed value are delta, that must be summarized.
-      */
-    virtual void onProgress(const Progress & /*progress*/) {}
-
-    /** Content-Type to set when sending HTTP response.
-      */
-    virtual std::string getContentType() const { return "text/plain; charset=UTF-8"; }
-
-    virtual ~IBlockOutputStream() = default;
-
-    /** Don't let to alter table while instance of stream is alive.
-      */
-    void addTableLock(const TableLockHolder & lock) { table_locks.push_back(lock); }
-
-private:
-    std::vector<TableLockHolder> table_locks;
-};
-
-}
diff --git a/src/DataStreams/IBlockStream_fwd.h b/src/DataStreams/IBlockStream_fwd.h
deleted file mode 100644
index d74a9528ed9..00000000000
--- a/src/DataStreams/IBlockStream_fwd.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#pragma once
-
-#include <memory>
-#include <vector>
-
-namespace DB
-{
-
-class IBlockInputStream;
-class IBlockOutputStream;
-
-using BlockInputStreamPtr = std::shared_ptr<IBlockInputStream>;
-using BlockInputStreams = std::vector<BlockInputStreamPtr>;
-using BlockOutputStreamPtr = std::shared_ptr<IBlockOutputStream>;
-using BlockOutputStreams = std::vector<BlockOutputStreamPtr>;
-
-}
diff --git a/src/DataStreams/InternalTextLogs.h b/src/DataStreams/InternalTextLogs.h
index 1312c1d327c..a8b119b0f69 100644
--- a/src/DataStreams/InternalTextLogs.h
+++ b/src/DataStreams/InternalTextLogs.h
@@ -1,6 +1,6 @@
 #pragma once
-#include <DataStreams/IBlockOutputStream.h>
 #include <IO/WriteBuffer.h>
+#include <Core/Block.h>
 
 
 namespace DB
diff --git a/src/DataStreams/NativeReader.h b/src/DataStreams/NativeReader.h
index cfd58bde2cc..95b03c71764 100644
--- a/src/DataStreams/NativeReader.h
+++ b/src/DataStreams/NativeReader.h
@@ -1,8 +1,8 @@
 #pragma once
 
-#include <DataStreams/IBlockInputStream.h>
 #include <DataStreams/MarkInCompressedFile.h>
 #include <Common/PODArray.h>
+#include <Core/Block.h>
 
 namespace DB
 {
diff --git a/src/DataStreams/TemporaryFileStream.cpp b/src/DataStreams/TemporaryFileStream.cpp
index 826cf5508d8..4b7c9d50fe7 100644
--- a/src/DataStreams/TemporaryFileStream.cpp
+++ b/src/DataStreams/TemporaryFileStream.cpp
@@ -1,8 +1,6 @@
 #include <DataStreams/TemporaryFileStream.h>
-#include <DataStreams/IBlockInputStream.h>
 #include <DataStreams/NativeReader.h>
 #include <DataStreams/NativeWriter.h>
-#include <DataStreams/copyData.h>
 #include <Processors/Executors/PullingPipelineExecutor.h>
 #include <Processors/ISource.h>
 #include <Compression/CompressedWriteBuffer.h>
diff --git a/src/DataStreams/TemporaryFileStream.h b/src/DataStreams/TemporaryFileStream.h
index c0c13605928..e288b5b30fa 100644
--- a/src/DataStreams/TemporaryFileStream.h
+++ b/src/DataStreams/TemporaryFileStream.h
@@ -4,7 +4,6 @@
 #include <Processors/QueryPipelineBuilder.h>
 #include <Compression/CompressedReadBuffer.h>
 #include <IO/ReadBufferFromFile.h>
-#include <DataStreams/IBlockStream_fwd.h>
 #include <DataStreams/NativeReader.h>
 
 namespace DB
diff --git a/src/DataStreams/copyData.cpp b/src/DataStreams/copyData.cpp
deleted file mode 100644
index a26052778a8..00000000000
--- a/src/DataStreams/copyData.cpp
+++ /dev/null
@@ -1,86 +0,0 @@
-#include <DataStreams/IBlockInputStream.h>
-#include <DataStreams/IBlockOutputStream.h>
-#include <DataStreams/copyData.h>
-#include <Common/ThreadPool.h>
-
-
-namespace DB
-{
-
-namespace
-{
-
-bool isAtomicSet(std::atomic<bool> * val)
-{
-    return ((val != nullptr) && val->load(std::memory_order_seq_cst));
-}
-
-}
-
-template <typename TCancelCallback, typename TProgressCallback>
-void copyDataImpl(IBlockInputStream & from, IBlockOutputStream & to, TCancelCallback && is_cancelled, TProgressCallback && progress)
-{
-    from.readPrefix();
-    to.writePrefix();
-
-    while (Block block = from.read())
-    {
-        if (is_cancelled())
-            break;
-
-        to.write(block);
-        progress(block);
-    }
-
-    if (is_cancelled())
-        return;
-
-    /// For outputting additional information in some formats.
-    if (from.getProfileInfo().hasAppliedLimit())
-        to.setRowsBeforeLimit(from.getProfileInfo().getRowsBeforeLimit());
-
-    to.setTotals(from.getTotals());
-    to.setExtremes(from.getExtremes());
-
-    if (is_cancelled())
-        return;
-
-    from.readSuffix();
-    to.writeSuffix();
-}
-
-void copyData(IBlockInputStream & from, IBlockOutputStream & to, const std::function<void(const Block & block)> & progress,
-              std::atomic<bool> * is_cancelled)
-{
-    auto is_cancelled_pred = [is_cancelled] ()
-    {
-        return isAtomicSet(is_cancelled);
-    };
-
-    copyDataImpl(from, to, is_cancelled_pred, progress);
-}
-
-inline void doNothing(const Block &) {}
-
-void copyData(IBlockInputStream & from, IBlockOutputStream & to, std::atomic<bool> * is_cancelled)
-{
-    auto is_cancelled_pred = [is_cancelled] ()
-    {
-        return isAtomicSet(is_cancelled);
-    };
-
-    copyDataImpl(from, to, is_cancelled_pred, doNothing);
-}
-
-void copyData(IBlockInputStream & from, IBlockOutputStream & to, const std::function<bool()> & is_cancelled)
-{
-    copyDataImpl(from, to, is_cancelled, doNothing);
-}
-
-void copyData(IBlockInputStream & from, IBlockOutputStream & to, const std::function<bool()> & is_cancelled,
-              const std::function<void(const Block & block)> & progress)
-{
-    copyDataImpl(from, to, is_cancelled, progress);
-}
-
-}
diff --git a/src/DataStreams/copyData.h b/src/DataStreams/copyData.h
deleted file mode 100644
index 3dc90aed37d..00000000000
--- a/src/DataStreams/copyData.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#pragma once
-
-#include <DataStreams/IBlockStream_fwd.h>
-
-#include <atomic>
-#include <functional>
-
-
-namespace DB
-{
-
-class Block;
-
-/** Copies data from the InputStream into the OutputStream
-  * (for example, from the database to the console, etc.)
-  */
-void copyData(IBlockInputStream & from, IBlockOutputStream & to, std::atomic<bool> * is_cancelled = nullptr);
-
-void copyData(IBlockInputStream & from, IBlockOutputStream & to, const std::function<void(const Block & block)> & progress,
-              std::atomic<bool> * is_cancelled = nullptr);
-
-void copyData(IBlockInputStream & from, IBlockOutputStream & to, const std::function<bool()> & is_cancelled);
-
-void copyData(IBlockInputStream & from, IBlockOutputStream & to, const std::function<bool()> & is_cancelled,
-              const std::function<void(const Block & block)> & progress);
-
-}
diff --git a/src/Databases/MySQL/MaterializedMySQLSyncThread.cpp b/src/Databases/MySQL/MaterializedMySQLSyncThread.cpp
index f4a5b6b5e4e..9ec8a9523c6 100644
--- a/src/Databases/MySQL/MaterializedMySQLSyncThread.cpp
+++ b/src/Databases/MySQL/MaterializedMySQLSyncThread.cpp
@@ -14,7 +14,6 @@
 #    include <Processors/Executors/CompletedPipelineExecutor.h>
 #    include <Processors/Sources/SourceFromSingleChunk.h>
 #    include <Processors/Transforms/CountingTransform.h>
-#    include <DataStreams/copyData.h>
 #    include <Databases/MySQL/DatabaseMaterializedMySQL.h>
 #    include <Databases/MySQL/MaterializeMetadata.h>
 #    include <Formats/MySQLSource.h>
diff --git a/src/Dictionaries/DictionarySourceHelpers.cpp b/src/Dictionaries/DictionarySourceHelpers.cpp
index cf003dceb8e..cd87cf831a2 100644
--- a/src/Dictionaries/DictionarySourceHelpers.cpp
+++ b/src/Dictionaries/DictionarySourceHelpers.cpp
@@ -1,7 +1,6 @@
 #include "DictionarySourceHelpers.h"
 #include <Columns/ColumnsNumber.h>
 #include <Core/ColumnWithTypeAndName.h>
-#include <DataStreams/IBlockStream_fwd.h>
 #include <DataTypes/DataTypesNumber.h>
 #include <IO/WriteHelpers.h>
 #include "DictionaryStructure.h"
diff --git a/src/Dictionaries/HTTPDictionarySource.cpp b/src/Dictionaries/HTTPDictionarySource.cpp
index 6cb4d52744a..844a6357e29 100644
--- a/src/Dictionaries/HTTPDictionarySource.cpp
+++ b/src/Dictionaries/HTTPDictionarySource.cpp
@@ -1,5 +1,4 @@
 #include "HTTPDictionarySource.h"
-#include <DataStreams/IBlockOutputStream.h>
 #include <DataStreams/formatBlock.h>
 #include <IO/ConnectionTimeouts.h>
 #include <IO/ConnectionTimeoutsContext.h>
diff --git a/src/Formats/FormatFactory.cpp b/src/Formats/FormatFactory.cpp
index ed9f9d52b94..34574ca13f8 100644
--- a/src/Formats/FormatFactory.cpp
+++ b/src/Formats/FormatFactory.cpp
@@ -7,7 +7,6 @@
 #include <Formats/FormatSettings.h>
 #include <Processors/Formats/IRowInputFormat.h>
 #include <Processors/Formats/IRowOutputFormat.h>
-#include <Processors/Formats/OutputStreamToOutputFormat.h>
 #include <Processors/Formats/Impl/ValuesBlockInputFormat.h>
 #include <Processors/Formats/Impl/MySQLOutputFormat.h>
 #include <Processors/Formats/Impl/ParallelParsingInputFormat.h>
diff --git a/src/Formats/FormatFactory.h b/src/Formats/FormatFactory.h
index d816ef1d016..f20cec56943 100644
--- a/src/Formats/FormatFactory.h
+++ b/src/Formats/FormatFactory.h
@@ -1,7 +1,6 @@
 #pragma once
 
 #include <Columns/IColumn.h>
-#include <DataStreams/IBlockStream_fwd.h>
 #include <Formats/FormatSettings.h>
 #include <Interpreters/Context_fwd.h>
 #include <IO/BufferWithOwnMemory.h>
diff --git a/src/Interpreters/Aggregator.h b/src/Interpreters/Aggregator.h
index 85ce83868c6..975075eba96 100644
--- a/src/Interpreters/Aggregator.h
+++ b/src/Interpreters/Aggregator.h
@@ -19,7 +19,6 @@
 #include <Common/assert_cast.h>
 #include <Common/filesystemHelpers.h>
 
-#include <DataStreams/IBlockStream_fwd.h>
 #include <DataStreams/SizeLimits.h>
 
 #include <Disks/SingleDiskVolume.h>
diff --git a/src/Interpreters/Context.h b/src/Interpreters/Context.h
index 1e19c18de43..22ae459a662 100644
--- a/src/Interpreters/Context.h
+++ b/src/Interpreters/Context.h
@@ -5,7 +5,6 @@
 #include <Core/NamesAndTypes.h>
 #include <Core/Settings.h>
 #include <Core/UUID.h>
-#include <DataStreams/IBlockStream_fwd.h>
 #include <Interpreters/ClientInfo.h>
 #include <Interpreters/Context_fwd.h>
 #include <Interpreters/DatabaseCatalog.h>
diff --git a/src/Interpreters/ExpressionAnalyzer.cpp b/src/Interpreters/ExpressionAnalyzer.cpp
index 566ee60a3e6..9d770aee159 100644
--- a/src/Interpreters/ExpressionAnalyzer.cpp
+++ b/src/Interpreters/ExpressionAnalyzer.cpp
@@ -35,7 +35,6 @@
 #include <Storages/StorageDictionary.h>
 #include <Storages/StorageJoin.h>
 
-#include <DataStreams/copyData.h>
 
 #include <Dictionaries/DictionaryStructure.h>
 
diff --git a/src/Interpreters/ExpressionAnalyzer.h b/src/Interpreters/ExpressionAnalyzer.h
index c785b085a57..b6bb3c5fad5 100644
--- a/src/Interpreters/ExpressionAnalyzer.h
+++ b/src/Interpreters/ExpressionAnalyzer.h
@@ -1,7 +1,6 @@
 #pragma once
 
 #include <Columns/FilterDescription.h>
-#include <DataStreams/IBlockStream_fwd.h>
 #include <Interpreters/AggregateDescription.h>
 #include <Interpreters/DatabaseCatalog.h>
 #include <Interpreters/SubqueryForSet.h>
diff --git a/src/Interpreters/InterpreterExistsQuery.cpp b/src/Interpreters/InterpreterExistsQuery.cpp
index 6eb188bce9f..6ffeef5cc7d 100644
--- a/src/Interpreters/InterpreterExistsQuery.cpp
+++ b/src/Interpreters/InterpreterExistsQuery.cpp
@@ -2,7 +2,6 @@
 #include <Parsers/TablePropertiesQueriesASTs.h>
 #include <Processors/Sources/SourceFromSingleChunk.h>
 #include <DataStreams/BlockIO.h>
-#include <DataStreams/copyData.h>
 #include <DataTypes/DataTypesNumber.h>
 #include <Columns/ColumnsNumber.h>
 #include <Interpreters/Context.h>
diff --git a/src/Interpreters/InterpreterInsertQuery.cpp b/src/Interpreters/InterpreterInsertQuery.cpp
index 8a31917caef..6a1a8652b23 100644
--- a/src/Interpreters/InterpreterInsertQuery.cpp
+++ b/src/Interpreters/InterpreterInsertQuery.cpp
@@ -3,7 +3,6 @@
 #include <Access/AccessFlags.h>
 #include <Columns/ColumnNullable.h>
 #include <Processors/Transforms/buildPushingToViewsChain.h>
-#include <DataStreams/copyData.h>
 #include <DataTypes/DataTypeNullable.h>
 #include <IO/ConnectionTimeoutsContext.h>
 #include <Interpreters/InterpreterSelectWithUnionQuery.h>
diff --git a/src/Interpreters/InterpreterInsertQuery.h b/src/Interpreters/InterpreterInsertQuery.h
index 0d6fe34c0c2..5f44603a420 100644
--- a/src/Interpreters/InterpreterInsertQuery.h
+++ b/src/Interpreters/InterpreterInsertQuery.h
@@ -1,6 +1,5 @@
 #pragma once
 
-#include <DataStreams/IBlockOutputStream.h>
 #include <DataStreams/BlockIO.h>
 #include <Interpreters/IInterpreter.h>
 #include <Parsers/ASTInsertQuery.h>
diff --git a/src/Interpreters/InterpreterSelectQuery.h b/src/Interpreters/InterpreterSelectQuery.h
index 21e15bc74bb..cf24d14b737 100644
--- a/src/Interpreters/InterpreterSelectQuery.h
+++ b/src/Interpreters/InterpreterSelectQuery.h
@@ -3,7 +3,6 @@
 #include <memory>
 
 #include <Core/QueryProcessingStage.h>
-#include <DataStreams/IBlockStream_fwd.h>
 #include <Interpreters/ExpressionActions.h>
 #include <Interpreters/ExpressionAnalyzer.h>
 #include <Interpreters/IInterpreterUnionOrSelectQuery.h>
@@ -52,13 +51,6 @@ public:
         const SelectQueryOptions &,
         const Names & required_result_column_names_ = Names{});
 
-    /// Read data not from the table specified in the query, but from the prepared source `input`.
-    InterpreterSelectQuery(
-        const ASTPtr & query_ptr_,
-        ContextPtr context_,
-        const BlockInputStreamPtr & input_,
-        const SelectQueryOptions & = {});
-
     /// Read data not from the table specified in the query, but from the prepared pipe `input`.
     InterpreterSelectQuery(
         const ASTPtr & query_ptr_,
diff --git a/src/Interpreters/InterpreterShowCreateQuery.cpp b/src/Interpreters/InterpreterShowCreateQuery.cpp
index adf1aae3ff3..c191a73bc71 100644
--- a/src/Interpreters/InterpreterShowCreateQuery.cpp
+++ b/src/Interpreters/InterpreterShowCreateQuery.cpp
@@ -3,7 +3,6 @@
 #include <Parsers/formatAST.h>
 #include <Processors/Sources/SourceFromSingleChunk.h>
 #include <DataStreams/BlockIO.h>
-#include <DataStreams/copyData.h>
 #include <DataTypes/DataTypesNumber.h>
 #include <DataTypes/DataTypeString.h>
 #include <Columns/ColumnString.h>
diff --git a/src/Interpreters/InterpreterWatchQuery.cpp b/src/Interpreters/InterpreterWatchQuery.cpp
index bc0aeda56bd..78c4eca5ca6 100644
--- a/src/Interpreters/InterpreterWatchQuery.cpp
+++ b/src/Interpreters/InterpreterWatchQuery.cpp
@@ -15,7 +15,6 @@ limitations under the License. */
 #include <Interpreters/InterpreterWatchQuery.h>
 #include <Interpreters/Context.h>
 #include <Access/AccessFlags.h>
-#include <DataStreams/IBlockInputStream.h>
 #include <DataStreams/StreamLocalLimits.h>
 
 
diff --git a/src/Interpreters/InterpreterWatchQuery.h b/src/Interpreters/InterpreterWatchQuery.h
index 2bc7236582a..e43ed88af2f 100644
--- a/src/Interpreters/InterpreterWatchQuery.h
+++ b/src/Interpreters/InterpreterWatchQuery.h
@@ -38,8 +38,6 @@ private:
 
     /// Table from where to read data, if not subquery.
     StoragePtr storage;
-    /// Streams of read data
-    BlockInputStreams streams;
 };
 
 }
diff --git a/src/Interpreters/JoinSwitcher.h b/src/Interpreters/JoinSwitcher.h
index aaa7441b8a4..30115710e22 100644
--- a/src/Interpreters/JoinSwitcher.h
+++ b/src/Interpreters/JoinSwitcher.h
@@ -5,7 +5,6 @@
 #include <Core/Block.h>
 #include <Interpreters/IJoin.h>
 #include <Interpreters/TableJoin.h>
-#include <DataStreams/IBlockInputStream.h>
 
 
 namespace DB
diff --git a/src/Interpreters/ProcessList.cpp b/src/Interpreters/ProcessList.cpp
index f8402cf0287..fb9f2e25c07 100644
--- a/src/Interpreters/ProcessList.cpp
+++ b/src/Interpreters/ProcessList.cpp
@@ -11,7 +11,6 @@
 #include <Common/Exception.h>
 #include <Common/CurrentThread.h>
 #include <IO/WriteHelpers.h>
-#include <DataStreams/IBlockInputStream.h>
 #include <base/logger_useful.h>
 #include <chrono>
 
diff --git a/src/Interpreters/SortedBlocksWriter.h b/src/Interpreters/SortedBlocksWriter.h
index c65511e943e..94bebce88f7 100644
--- a/src/Interpreters/SortedBlocksWriter.h
+++ b/src/Interpreters/SortedBlocksWriter.h
@@ -8,7 +8,6 @@
 #include <Core/SortDescription.h>
 #include <Processors/Pipe.h>
 #include <DataStreams/SizeLimits.h>
-#include <DataStreams/IBlockStream_fwd.h>
 
 
 namespace DB
diff --git a/src/Interpreters/TableJoin.h b/src/Interpreters/TableJoin.h
index 22cd958f4f8..02dcd95ab41 100644
--- a/src/Interpreters/TableJoin.h
+++ b/src/Interpreters/TableJoin.h
@@ -7,7 +7,6 @@
 #include <Interpreters/IJoin.h>
 #include <Interpreters/join_common.h>
 #include <Interpreters/asof.h>
-#include <DataStreams/IBlockStream_fwd.h>
 #include <DataStreams/SizeLimits.h>
 #include <DataTypes/getLeastSupertype.h>
 #include <Storages/IStorage_fwd.h>
diff --git a/src/Interpreters/executeDDLQueryOnCluster.h b/src/Interpreters/executeDDLQueryOnCluster.h
index f430c2364b2..0ad40dd3332 100644
--- a/src/Interpreters/executeDDLQueryOnCluster.h
+++ b/src/Interpreters/executeDDLQueryOnCluster.h
@@ -4,7 +4,6 @@
 #include <Processors/Sources/SourceWithProgress.h>
 #include <Interpreters/Context_fwd.h>
 #include <Parsers/IAST_fwd.h>
-#include <DataStreams/IBlockInputStream.h>
 
 
 namespace zkutil
diff --git a/src/Interpreters/executeQuery.cpp b/src/Interpreters/executeQuery.cpp
index 3f5b386d16f..0a1130c721b 100644
--- a/src/Interpreters/executeQuery.cpp
+++ b/src/Interpreters/executeQuery.cpp
@@ -10,8 +10,6 @@
 #include <IO/copyData.h>
 
 #include <DataStreams/BlockIO.h>
-#include <DataStreams/IBlockInputStream.h>
-#include <DataStreams/copyData.h>
 #include <Processors/Transforms/CountingTransform.h>
 #include <Processors/Transforms/getSourceFromASTInsertQuery.h>
 
diff --git a/src/Processors/Formats/OutputStreamToOutputFormat.cpp b/src/Processors/Formats/OutputStreamToOutputFormat.cpp
deleted file mode 100644
index 5d4e7832327..00000000000
--- a/src/Processors/Formats/OutputStreamToOutputFormat.cpp
+++ /dev/null
@@ -1,43 +0,0 @@
-#include <Processors/Formats/OutputStreamToOutputFormat.h>
-#include <Processors/Formats/IOutputFormat.h>
-
-namespace DB
-{
-
-Block OutputStreamToOutputFormat::getHeader() const
-{
-    return output_format->getPort(IOutputFormat::PortKind::Main).getHeader();
-}
-
-void OutputStreamToOutputFormat::write(const Block & block)
-{
-    output_format->write(block);
-}
-
-void OutputStreamToOutputFormat::writePrefix() { output_format->doWritePrefix(); }
-void OutputStreamToOutputFormat::writeSuffix() { output_format->doWriteSuffix(); }
-
-void OutputStreamToOutputFormat::flush() { output_format->flush(); }
-
-void OutputStreamToOutputFormat::setRowsBeforeLimit(size_t rows_before_limit)
-{
-    output_format->setRowsBeforeLimit(rows_before_limit);
-}
-
-void OutputStreamToOutputFormat::setTotals(const Block & totals)
-{
-    if (totals)
-        output_format->setTotals(totals);
-}
-
-void OutputStreamToOutputFormat::setExtremes(const Block & extremes)
-{
-    if (extremes)
-        output_format->setExtremes(extremes);
-}
-
-void OutputStreamToOutputFormat::onProgress(const Progress & progress) { output_format->onProgress(progress); }
-
-std::string OutputStreamToOutputFormat::getContentType() const { return output_format->getContentType(); }
-
-}
diff --git a/src/Processors/Formats/OutputStreamToOutputFormat.h b/src/Processors/Formats/OutputStreamToOutputFormat.h
deleted file mode 100644
index a85de12b49d..00000000000
--- a/src/Processors/Formats/OutputStreamToOutputFormat.h
+++ /dev/null
@@ -1,39 +0,0 @@
-#pragma once
-#include <DataStreams/IBlockOutputStream.h>
-
-namespace DB
-{
-
-
-class IOutputFormat;
-
-using OutputFormatPtr = std::shared_ptr<IOutputFormat>;
-
-/// Wrapper. Implements IBlockOutputStream interface using IOutputFormat object.
-class OutputStreamToOutputFormat : public IBlockOutputStream
-{
-public:
-    explicit OutputStreamToOutputFormat(OutputFormatPtr output_format_) : output_format(std::move(output_format_)) {}
-
-    Block getHeader() const override;
-
-    void write(const Block & block) override;
-
-    void writePrefix() override;
-    void writeSuffix() override;
-
-    void flush() override;
-
-    void setRowsBeforeLimit(size_t rows_before_limit) override;
-    void setTotals(const Block & totals) override;
-    void setExtremes(const Block & extremes) override;
-
-    void onProgress(const Progress & progress) override;
-
-    std::string getContentType() const override;
-
-private:
-    OutputFormatPtr output_format;
-};
-
-}
diff --git a/src/Processors/QueryPipelineBuilder.h b/src/Processors/QueryPipelineBuilder.h
index 78ae5dd41be..7e0ddbc0285 100644
--- a/src/Processors/QueryPipelineBuilder.h
+++ b/src/Processors/QueryPipelineBuilder.h
@@ -1,6 +1,5 @@
 #pragma once
 
-#include <DataStreams/IBlockOutputStream.h>
 #include <Processors/Executors/PipelineExecutor.h>
 #include <Processors/IProcessor.h>
 #include <Processors/Pipe.h>
diff --git a/src/Processors/Transforms/CreatingSetsTransform.cpp b/src/Processors/Transforms/CreatingSetsTransform.cpp
index 6776caae9bf..e6ae620e69b 100644
--- a/src/Processors/Transforms/CreatingSetsTransform.cpp
+++ b/src/Processors/Transforms/CreatingSetsTransform.cpp
@@ -1,7 +1,6 @@
 #include <Processors/Transforms/CreatingSetsTransform.h>
 #include <Processors/Executors/PushingPipelineExecutor.h>
 #include <Processors/Sinks/SinkToStorage.h>
-#include <DataStreams/IBlockOutputStream.h>
 
 #include <Interpreters/Set.h>
 #include <Interpreters/IJoin.h>
diff --git a/src/Processors/Transforms/CreatingSetsTransform.h b/src/Processors/Transforms/CreatingSetsTransform.h
index eca12c33f54..a5a67e99afc 100644
--- a/src/Processors/Transforms/CreatingSetsTransform.h
+++ b/src/Processors/Transforms/CreatingSetsTransform.h
@@ -1,7 +1,6 @@
 #pragma once
 
 #include <DataStreams/SizeLimits.h>
-#include <DataStreams/IBlockStream_fwd.h>
 #include <Interpreters/Context_fwd.h>
 #include <Interpreters/SubqueryForSet.h>
 #include <Processors/IAccumulatingTransform.h>
diff --git a/src/Processors/Transforms/buildPushingToViewsChain.h b/src/Processors/Transforms/buildPushingToViewsChain.h
index 75d0528ff7b..6956dedbc41 100644
--- a/src/Processors/Transforms/buildPushingToViewsChain.h
+++ b/src/Processors/Transforms/buildPushingToViewsChain.h
@@ -1,6 +1,5 @@
 #pragma once
 
-#include <DataStreams/IBlockOutputStream.h>
 #include <Interpreters/QueryViewsLog.h>
 #include <Parsers/IAST_fwd.h>
 #include <Processors/Chain.h>
diff --git a/src/Server/MySQLHandler.cpp b/src/Server/MySQLHandler.cpp
index 3720362775c..8f4f04e56c5 100644
--- a/src/Server/MySQLHandler.cpp
+++ b/src/Server/MySQLHandler.cpp
@@ -7,7 +7,6 @@
 #include <Core/MySQL/PacketsConnection.h>
 #include <Core/MySQL/PacketsProtocolText.h>
 #include <Core/NamesAndTypes.h>
-#include <DataStreams/copyData.h>
 #include <Interpreters/Session.h>
 #include <Interpreters/executeQuery.h>
 #include <IO/copyData.h>
diff --git a/src/Server/TCPHandler.h b/src/Server/TCPHandler.h
index d001b12ee66..e89d82cfcc8 100644
--- a/src/Server/TCPHandler.h
+++ b/src/Server/TCPHandler.h
@@ -13,7 +13,6 @@
 #include <Interpreters/InternalTextLogsQueue.h>
 #include <Interpreters/Context_fwd.h>
 #include <DataStreams/NativeReader.h>
-#include <DataStreams/IBlockStream_fwd.h>
 
 #include "IServer.h"
 
diff --git a/src/Storages/IStorage.h b/src/Storages/IStorage.h
index 6ce17552ba1..4ed3a43d2ed 100644
--- a/src/Storages/IStorage.h
+++ b/src/Storages/IStorage.h
@@ -2,7 +2,6 @@
 
 #include <Core/Names.h>
 #include <Core/QueryProcessingStage.h>
-#include <DataStreams/IBlockStream_fwd.h>
 #include <Databases/IDatabase.h>
 #include <Interpreters/CancellationCode.h>
 #include <Interpreters/Context_fwd.h>
diff --git a/src/Storages/Kafka/StorageKafka.cpp b/src/Storages/Kafka/StorageKafka.cpp
index 690c9cbd4d0..39688060b0a 100644
--- a/src/Storages/Kafka/StorageKafka.cpp
+++ b/src/Storages/Kafka/StorageKafka.cpp
@@ -1,7 +1,6 @@
 #include <Storages/Kafka/StorageKafka.h>
 #include <Storages/Kafka/parseSyslogLevel.h>
 
-#include <DataStreams/copyData.h>
 #include <DataTypes/DataTypeArray.h>
 #include <DataTypes/DataTypeDateTime.h>
 #include <DataTypes/DataTypeDateTime64.h>
diff --git a/src/Storages/LiveView/StorageLiveView.cpp b/src/Storages/LiveView/StorageLiveView.cpp
index 4641a1631f2..be3dd9ae6c9 100644
--- a/src/Storages/LiveView/StorageLiveView.cpp
+++ b/src/Storages/LiveView/StorageLiveView.cpp
@@ -21,7 +21,6 @@ limitations under the License. */
 #include <Processors/Executors/PullingPipelineExecutor.h>
 #include <Processors/Transforms/SquashingChunksTransform.h>
 #include <Processors/Transforms/ExpressionTransform.h>
-#include <DataStreams/copyData.h>
 #include <base/logger_useful.h>
 #include <Common/typeid_cast.h>
 #include <Common/SipHash.h>
diff --git a/src/Storages/MergeTree/IMergeTreeDataPartWriter.h b/src/Storages/MergeTree/IMergeTreeDataPartWriter.h
index 5e12d5da678..d0d3f283478 100644
--- a/src/Storages/MergeTree/IMergeTreeDataPartWriter.h
+++ b/src/Storages/MergeTree/IMergeTreeDataPartWriter.h
@@ -5,7 +5,6 @@
 #include <Compression/CompressedWriteBuffer.h>
 #include <IO/HashingWriteBuffer.h>
 #include <Storages/MergeTree/MergeTreeData.h>
-#include <DataStreams/IBlockOutputStream.h>
 #include <Storages/MergeTree/IMergeTreeDataPart.h>
 #include <Disks/IDisk.h>
 
diff --git a/src/Storages/MergeTree/MergeTreeData.cpp b/src/Storages/MergeTree/MergeTreeData.cpp
index f4adee8c259..5dbca837f31 100644
--- a/src/Storages/MergeTree/MergeTreeData.cpp
+++ b/src/Storages/MergeTree/MergeTreeData.cpp
@@ -4,7 +4,6 @@
 #include <Backups/BackupEntryFromSmallFile.h>
 #include <Backups/IBackup.h>
 #include <Compression/CompressedReadBuffer.h>
-#include <DataStreams/copyData.h>
 #include <DataTypes/DataTypeArray.h>
 #include <DataTypes/DataTypeDate.h>
 #include <DataTypes/DataTypeDateTime.h>
diff --git a/src/Storages/MergeTree/MergeTreeDataPartWriterOnDisk.h b/src/Storages/MergeTree/MergeTreeDataPartWriterOnDisk.h
index d952950e461..e64ba9edec0 100644
--- a/src/Storages/MergeTree/MergeTreeDataPartWriterOnDisk.h
+++ b/src/Storages/MergeTree/MergeTreeDataPartWriterOnDisk.h
@@ -6,7 +6,6 @@
 #include <Compression/CompressedWriteBuffer.h>
 #include <IO/HashingWriteBuffer.h>
 #include <Storages/MergeTree/MergeTreeData.h>
-#include <DataStreams/IBlockOutputStream.h>
 #include <Storages/MergeTree/IMergeTreeDataPart.h>
 #include <Disks/IDisk.h>
 
diff --git a/src/Storages/MergeTree/ReplicatedMergeTreeSink.cpp b/src/Storages/MergeTree/ReplicatedMergeTreeSink.cpp
index 75308f872dc..e3ca902b1bd 100644
--- a/src/Storages/MergeTree/ReplicatedMergeTreeSink.cpp
+++ b/src/Storages/MergeTree/ReplicatedMergeTreeSink.cpp
@@ -2,9 +2,9 @@
 #include <Storages/MergeTree/ReplicatedMergeTreeQuorumEntry.h>
 #include <Storages/MergeTree/ReplicatedMergeTreeSink.h>
 #include <Interpreters/PartLog.h>
-#include <DataStreams/IBlockOutputStream.h>
 #include <Common/SipHash.h>
 #include <Common/ZooKeeper/KeeperException.h>
+#include <Core/Block.h>
 #include <IO/Operators.h>
 
 
diff --git a/src/Storages/PostgreSQL/MaterializedPostgreSQLConsumer.cpp b/src/Storages/PostgreSQL/MaterializedPostgreSQLConsumer.cpp
index 9e138e9882a..947c0bbe932 100644
--- a/src/Storages/PostgreSQL/MaterializedPostgreSQLConsumer.cpp
+++ b/src/Storages/PostgreSQL/MaterializedPostgreSQLConsumer.cpp
@@ -3,7 +3,6 @@
 #include "StorageMaterializedPostgreSQL.h"
 #include <Columns/ColumnNullable.h>
 #include <Common/hex.h>
-#include <DataStreams/copyData.h>
 #include <DataTypes/DataTypeNullable.h>
 #include <Interpreters/Context.h>
 #include <Interpreters/InterpreterInsertQuery.h>
diff --git a/src/Storages/PostgreSQL/PostgreSQLReplicationHandler.cpp b/src/Storages/PostgreSQL/PostgreSQLReplicationHandler.cpp
index 873a4b4860c..3796bd8ba57 100644
--- a/src/Storages/PostgreSQL/PostgreSQLReplicationHandler.cpp
+++ b/src/Storages/PostgreSQL/PostgreSQLReplicationHandler.cpp
@@ -9,7 +9,6 @@
 #include <Interpreters/InterpreterRenameQuery.h>
 #include <Common/setThreadName.h>
 #include <Interpreters/Context.h>
-#include <DataStreams/copyData.h>
 #include <Databases/DatabaseOnDisk.h>
 
 
diff --git a/src/Storages/RabbitMQ/StorageRabbitMQ.cpp b/src/Storages/RabbitMQ/StorageRabbitMQ.cpp
index 2b4f5e4a276..cf9b557de25 100644
--- a/src/Storages/RabbitMQ/StorageRabbitMQ.cpp
+++ b/src/Storages/RabbitMQ/StorageRabbitMQ.cpp
@@ -1,5 +1,4 @@
 #include <amqpcpp.h>
-#include <DataStreams/copyData.h>
 #include <DataTypes/DataTypeDateTime.h>
 #include <DataTypes/DataTypeNullable.h>
 #include <DataTypes/DataTypeString.h>
diff --git a/src/Storages/StorageBuffer.h b/src/Storages/StorageBuffer.h
index 59f250d67b8..3e8955ad864 100644
--- a/src/Storages/StorageBuffer.h
+++ b/src/Storages/StorageBuffer.h
@@ -2,7 +2,6 @@
 
 #include <Core/BackgroundSchedulePool.h>
 #include <Core/NamesAndTypes.h>
-#include <DataStreams/IBlockOutputStream.h>
 #include <Storages/IStorage.h>
 #include <base/shared_ptr_helper.h>
 
diff --git a/src/Storages/StorageExecutable.cpp b/src/Storages/StorageExecutable.cpp
index d6e242d1a97..0f47f654428 100644
--- a/src/Storages/StorageExecutable.cpp
+++ b/src/Storages/StorageExecutable.cpp
@@ -11,7 +11,6 @@
 #include <Parsers/ASTSelectWithUnionQuery.h>
 #include <Parsers/ASTCreateQuery.h>
 
-#include <DataStreams/IBlockInputStream.h>
 #include <Processors/Pipe.h>
 #include <Processors/ISimpleTransform.h>
 #include <Processors/Executors/CompletedPipelineExecutor.h>
diff --git a/src/Storages/StorageFile.cpp b/src/Storages/StorageFile.cpp
index 9aa5689aa66..4ae55272db6 100644
--- a/src/Storages/StorageFile.cpp
+++ b/src/Storages/StorageFile.cpp
@@ -16,7 +16,6 @@
 
 #include <Formats/FormatFactory.h>
 #include <DataTypes/DataTypeString.h>
-#include <DataStreams/IBlockOutputStream.h>
 #include <Processors/Sinks/SinkToStorage.h>
 #include <Processors/Transforms/AddingDefaultsTransform.h>
 
@@ -479,8 +478,6 @@ Pipe StorageFile::read(
     size_t max_block_size,
     unsigned num_streams)
 {
-    BlockInputStreams blocks_input;
-
     if (use_table_fd)   /// need to call ctr BlockInputStream
         paths = {""};   /// when use fd, paths are empty
     else
diff --git a/src/Storages/StorageLog.cpp b/src/Storages/StorageLog.cpp
index 0fd94bac95a..f0c4509f188 100644
--- a/src/Storages/StorageLog.cpp
+++ b/src/Storages/StorageLog.cpp
@@ -16,8 +16,6 @@
 
 #include <DataTypes/NestedUtils.h>
 
-#include <DataStreams/IBlockOutputStream.h>
-
 #include <Columns/ColumnArray.h>
 
 #include <Interpreters/Context.h>
diff --git a/src/Storages/StorageMaterializedView.cpp b/src/Storages/StorageMaterializedView.cpp
index 5a9e8fc2461..904d1a7f89c 100644
--- a/src/Storages/StorageMaterializedView.cpp
+++ b/src/Storages/StorageMaterializedView.cpp
@@ -12,7 +12,6 @@
 #include <Interpreters/AddDefaultDatabaseVisitor.h>
 #include <Interpreters/getHeaderForProcessingStage.h>
 #include <Access/AccessFlags.h>
-#include <DataStreams/IBlockOutputStream.h>
 
 #include <Storages/AlterCommands.h>
 #include <Storages/StorageFactory.h>
diff --git a/src/Storages/StorageMemory.h b/src/Storages/StorageMemory.h
index 846fd4af5fd..063802faf1a 100644
--- a/src/Storages/StorageMemory.h
+++ b/src/Storages/StorageMemory.h
@@ -8,7 +8,6 @@
 
 #include <Core/NamesAndTypes.h>
 #include <Storages/IStorage.h>
-#include <DataStreams/IBlockOutputStream.h>
 
 #include <Common/MultiVersion.h>
 
diff --git a/src/Storages/StorageMongoDB.cpp b/src/Storages/StorageMongoDB.cpp
index eeb5b107b54..15430f60285 100644
--- a/src/Storages/StorageMongoDB.cpp
+++ b/src/Storages/StorageMongoDB.cpp
@@ -9,7 +9,6 @@
 #include <Interpreters/evaluateConstantExpression.h>
 #include <Core/Settings.h>
 #include <Interpreters/Context.h>
-#include <DataStreams/IBlockOutputStream.h>
 #include <Common/parseAddress.h>
 #include <IO/Operators.h>
 #include <Parsers/ASTLiteral.h>
diff --git a/src/Storages/StorageMySQL.cpp b/src/Storages/StorageMySQL.cpp
index 4264be9dbc2..3bdf3218b2e 100644
--- a/src/Storages/StorageMySQL.cpp
+++ b/src/Storages/StorageMySQL.cpp
@@ -9,7 +9,6 @@
 #include <Core/Settings.h>
 #include <Interpreters/Context.h>
 #include <DataTypes/DataTypeString.h>
-#include <DataStreams/IBlockOutputStream.h>
 #include <Formats/FormatFactory.h>
 #include <Processors/Formats/IOutputFormat.h>
 #include <Common/parseAddress.h>
diff --git a/src/Storages/StoragePostgreSQL.h b/src/Storages/StoragePostgreSQL.h
index b4bb5400930..10a60bf9b21 100644
--- a/src/Storages/StoragePostgreSQL.h
+++ b/src/Storages/StoragePostgreSQL.h
@@ -8,7 +8,6 @@
 #include <base/shared_ptr_helper.h>
 #include <Interpreters/Context.h>
 #include <Storages/IStorage.h>
-#include <DataStreams/IBlockOutputStream.h>
 #include <Core/PostgreSQL/PoolWithFailover.h>
 #include <Storages/ExternalDataSourceConfiguration.h>
 
diff --git a/src/Storages/StorageReplicatedMergeTree.cpp b/src/Storages/StorageReplicatedMergeTree.cpp
index 416d37cd351..20e64255684 100644
--- a/src/Storages/StorageReplicatedMergeTree.cpp
+++ b/src/Storages/StorageReplicatedMergeTree.cpp
@@ -60,7 +60,6 @@
 #include <Interpreters/DDLTask.h>
 #include <Interpreters/InterserverCredentials.h>
 
-#include <DataStreams/copyData.h>
 
 #include <Poco/DirectoryIterator.h>
 
diff --git a/src/Storages/StorageS3.cpp b/src/Storages/StorageS3.cpp
index 709c9dc4a63..d95a9465bd6 100644
--- a/src/Storages/StorageS3.cpp
+++ b/src/Storages/StorageS3.cpp
@@ -30,7 +30,6 @@
 
 #include <Formats/FormatFactory.h>
 
-#include <DataStreams/IBlockOutputStream.h>
 #include <Processors/Transforms/AddingDefaultsTransform.h>
 #include <Processors/Formats/IOutputFormat.h>
 #include <Processors/Formats/IInputFormat.h>
diff --git a/src/Storages/StorageS3Cluster.cpp b/src/Storages/StorageS3Cluster.cpp
index e6d41a53bfc..0e7faad194e 100644
--- a/src/Storages/StorageS3Cluster.cpp
+++ b/src/Storages/StorageS3Cluster.cpp
@@ -22,7 +22,6 @@
 #include <Interpreters/SelectQueryOptions.h>
 #include <Interpreters/InterpreterSelectQuery.h>
 #include <Interpreters/getTableExpressions.h>
-#include <DataStreams/IBlockOutputStream.h>
 #include <Processors/Transforms/AddingDefaultsTransform.h>
 #include <DataStreams/narrowBlockInputStreams.h>
 #include <Processors/Pipe.h>
diff --git a/src/Storages/StorageSet.cpp b/src/Storages/StorageSet.cpp
index 58c56f1401f..2547af1b0ad 100644
--- a/src/Storages/StorageSet.cpp
+++ b/src/Storages/StorageSet.cpp
@@ -6,6 +6,7 @@
 #include <Compression/CompressedWriteBuffer.h>
 #include <DataStreams/NativeWriter.h>
 #include <DataStreams/NativeReader.h>
+#include <DataStreams/BlockStreamProfileInfo.h>
 #include <Disks/IDisk.h>
 #include <Common/formatReadable.h>
 #include <Common/StringUtils/StringUtils.h>
diff --git a/src/Storages/StorageStripeLog.cpp b/src/Storages/StorageStripeLog.cpp
index 2dc2577f245..0cd07afc26c 100644
--- a/src/Storages/StorageStripeLog.cpp
+++ b/src/Storages/StorageStripeLog.cpp
@@ -14,7 +14,6 @@
 #include <IO/ReadHelpers.h>
 #include <IO/WriteHelpers.h>
 
-#include <DataStreams/IBlockOutputStream.h>
 #include <DataStreams/NativeReader.h>
 #include <DataStreams/NativeWriter.h>
 
diff --git a/src/Storages/StorageURL.cpp b/src/Storages/StorageURL.cpp
index 79f1d568057..9397986fadd 100644
--- a/src/Storages/StorageURL.cpp
+++ b/src/Storages/StorageURL.cpp
@@ -15,7 +15,6 @@
 #include <Processors/Formats/IOutputFormat.h>
 #include <Processors/Formats/IInputFormat.h>
 
-#include <DataStreams/IBlockOutputStream.h>
 #include <Processors/Transforms/AddingDefaultsTransform.h>
 
 #include <Poco/Net/HTTPRequest.h>
diff --git a/src/Storages/StorageXDBC.cpp b/src/Storages/StorageXDBC.cpp
index a1254e2aaeb..a0924896437 100644
--- a/src/Storages/StorageXDBC.cpp
+++ b/src/Storages/StorageXDBC.cpp
@@ -1,6 +1,5 @@
 #include "StorageXDBC.h"
 
-#include <DataStreams/IBlockOutputStream.h>
 #include <Formats/FormatFactory.h>
 #include <IO/ReadHelpers.h>
 #include <IO/ConnectionTimeoutsContext.h>
diff --git a/src/Storages/System/StorageSystemZooKeeper.cpp b/src/Storages/System/StorageSystemZooKeeper.cpp
index 9aedee66b5f..f2b2102c7ff 100644
--- a/src/Storages/System/StorageSystemZooKeeper.cpp
+++ b/src/Storages/System/StorageSystemZooKeeper.cpp
@@ -15,7 +15,6 @@
 #include <Parsers/ASTSubquery.h>
 #include <Interpreters/Set.h>
 #include <Interpreters/interpretSubquery.h>
-#include <DataStreams/IBlockInputStream.h>
 #include <Processors/Executors/PullingPipelineExecutor.h>
 
 
diff --git a/src/Storages/tests/gtest_storage_log.cpp b/src/Storages/tests/gtest_storage_log.cpp
index e7ecfc7c4f0..5b891c43aae 100644
--- a/src/Storages/tests/gtest_storage_log.cpp
+++ b/src/Storages/tests/gtest_storage_log.cpp
@@ -1,7 +1,6 @@
 #include <gtest/gtest.h>
 
 #include <Columns/ColumnsNumber.h>
-#include <DataStreams/copyData.h>
 #include <DataTypes/DataTypesNumber.h>
 #include <Disks/tests/gtest_disk.h>
 #include <Formats/FormatFactory.h>
diff --git a/src/TableFunctions/ITableFunctionFileLike.cpp b/src/TableFunctions/ITableFunctionFileLike.cpp
index afd81638da4..49461fe8f46 100644
--- a/src/TableFunctions/ITableFunctionFileLike.cpp
+++ b/src/TableFunctions/ITableFunctionFileLike.cpp
@@ -16,7 +16,6 @@
 
 #include <Processors/ISource.h>
 
-#include <DataStreams/IBlockInputStream.h>
 
 
 namespace DB
diff --git a/src/TableFunctions/TableFunctionExecutable.h b/src/TableFunctions/TableFunctionExecutable.h
index 05ef2b3b26b..128ee8e46fc 100644
--- a/src/TableFunctions/TableFunctionExecutable.h
+++ b/src/TableFunctions/TableFunctionExecutable.h
@@ -1,6 +1,5 @@
 #pragma once
 
-#include <DataStreams/IBlockStream_fwd.h>
 #include <TableFunctions/ITableFunction.h>
 
 namespace DB