YT-19324: move YT provider to ydb/library/yql

This commit is formed by the following script: https://paste.yandex-team.ru/6f92e4b8-efc5-4d34-948b-15ee2accd7e7/text.
This commit has zero effect on all projects that depend on YQL.

The summary of changes:
- `yql/providers/yt -> ydb/library/yql/providers/yt `- the whole implementation of YT provider is moved into YDB code base for further export as a part of YT YQL plugin shared library;
- `yql/providers/stat/{expr_nodes,uploader} -> ydb/library/yql/providers/stat/{expr_nodes,uploader}` - a small interface without implementation and the description of stat expr nodes;
- `yql/core/extract_predicate/ut -> ydb/library/yql/core/extract_predicate/ut`;
- `yql/core/{ut,ut_common} -> ydb/library/yql/core/{ut,ut_common}`;
- `yql/core` is gone;
- `yql/library/url_preprocessing -> ydb/library/yql/core/url_preprocessing`.

**NB**: all new targets inside `ydb/` are under `IF (NOT CMAKE_EXPORT)` clause which disables them from open-source cmake generation and ya make build. They will be enabled in the subsequent commits.

1 files changed, 90 insertions, 0 deletions

diff --git a/yt/cpp/mapreduce/interface/serialize.h b/yt/cpp/mapreduce/interface/serialize.h
new file mode 100644
index 00000000000..223dd446ba5
--- /dev/null
+++ b/yt/cpp/mapreduce/interface/serialize.h
@@ -0,0 +1,90 @@
+#pragma once
+
+///
+/// @file yt/cpp/mapreduce/interface/serialize.h
+///
+/// Header containing declaration of functions for serializing to/from YSON.
+
+#include "common.h"
+
+#include <library/cpp/type_info/fwd.h>
+
+namespace NYT::NYson {
+struct IYsonConsumer;
+} // namespace NYT::NYson
+
+namespace NYT {
+
+////////////////////////////////////////////////////////////////////////////////
+
+template <class T>
+void Deserialize(TMaybe<T>& value, const TNode& node)
+{
+    value.ConstructInPlace();
+    Deserialize(value.GetRef(), node);
+}
+
+template <class T>
+void Deserialize(TVector<T>& value, const TNode& node)
+{
+    for (const auto& element : node.AsList()) {
+        value.emplace_back();
+        Deserialize(value.back(), element);
+    }
+}
+
+template <class T>
+void Deserialize(THashMap<TString, T>& value, const TNode& node)
+{
+    for (const auto& item : node.AsMap()) {
+        Deserialize(value[item.first], item.second);
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+void Serialize(const TKey& key, NYT::NYson::IYsonConsumer* consumer);
+void Deserialize(TKey& key, const TNode& node);
+
+void Serialize(const TSortColumns& sortColumns, NYT::NYson::IYsonConsumer* consumer);
+void Deserialize(TSortColumns& sortColumns, const TNode& node);
+
+void Serialize(const TColumnNames& columnNames, NYT::NYson::IYsonConsumer* consumer);
+void Deserialize(TColumnNames& columnNames, const TNode& node);
+
+void Serialize(const TSortColumn& sortColumn, NYT::NYson::IYsonConsumer* consumer);
+void Deserialize(TSortColumn& sortColumn, const TNode& node);
+
+void Serialize(const TKeyBound& keyBound, NYT::NYson::IYsonConsumer* consumer);
+void Deserialize(TKeyBound& keyBound, const TNode& node);
+
+void Serialize(const TReadLimit& readLimit, NYT::NYson::IYsonConsumer* consumer);
+void Deserialize(TReadLimit& readLimit, const TNode& node);
+
+void Serialize(const TReadRange& readRange, NYT::NYson::IYsonConsumer* consumer);
+
+void Serialize(const TRichYPath& path, NYT::NYson::IYsonConsumer* consumer);
+void Deserialize(TRichYPath& path, const TNode& node);
+
+void Serialize(const TAttributeFilter& filter, NYT::NYson::IYsonConsumer* consumer);
+
+void Serialize(const TColumnSchema& columnSchema, NYT::NYson::IYsonConsumer* consumer);
+void Serialize(const TTableSchema& tableSchema, NYT::NYson::IYsonConsumer* consumer);
+
+void Deserialize(EValueType& valueType, const TNode& node);
+void Deserialize(TTableSchema& tableSchema, const TNode& node);
+void Deserialize(TColumnSchema& columnSchema, const TNode& node);
+void Deserialize(TTableColumnarStatistics& statistics, const TNode& node);
+void Deserialize(TMultiTablePartition& partition, const TNode& node);
+void Deserialize(TMultiTablePartitions& partitions, const TNode& node);
+void Deserialize(TTabletInfo& tabletInfos, const TNode& node);
+
+void Serialize(const TGUID& path, NYT::NYson::IYsonConsumer* consumer);
+void Deserialize(TGUID& value, const TNode& node);
+
+void Serialize(const NTi::TTypePtr& type, NYT::NYson::IYsonConsumer* consumer);
+void Deserialize(NTi::TTypePtr& type, const TNode& node);
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace NYT