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, 84 insertions, 0 deletions

diff --git a/yt/cpp/mapreduce/client/format_hints.cpp b/yt/cpp/mapreduce/client/format_hints.cpp
new file mode 100644
index 0000000000..1f6eb173ad
--- /dev/null
+++ b/yt/cpp/mapreduce/client/format_hints.cpp
@@ -0,0 +1,84 @@
+#include "format_hints.h"
+
+#include <yt/cpp/mapreduce/common/helpers.h>
+#include <yt/cpp/mapreduce/interface/config.h>
+#include <yt/cpp/mapreduce/interface/operation.h>
+
+#include <util/string/builder.h>
+
+namespace NYT::NDetail {
+
+using ::ToString;
+
+////////////////////////////////////////////////////////////////////////////////
+
+static void ApplyEnableTypeConversion(TFormat* format, const TFormatHints& formatHints)
+{
+    if (formatHints.EnableAllToStringConversion_) {
+        format->Config.Attributes()["enable_all_to_string_conversion"] = *formatHints.EnableAllToStringConversion_;
+    }
+    if (formatHints.EnableStringToAllConversion_) {
+        format->Config.Attributes()["enable_string_to_all_conversion"] = *formatHints.EnableStringToAllConversion_;
+    }
+    if (formatHints.EnableIntegralTypeConversion_) {
+        format->Config.Attributes()["enable_integral_type_conversion"] = *formatHints.EnableIntegralTypeConversion_;
+    }
+    if (formatHints.EnableIntegralToDoubleConversion_) {
+        format->Config.Attributes()["enable_integral_to_double_conversion"] = *formatHints.EnableIntegralToDoubleConversion_;
+    }
+    if (formatHints.EnableTypeConversion_) {
+        format->Config.Attributes()["enable_type_conversion"] = *formatHints.EnableTypeConversion_;
+    }
+}
+
+template <>
+void ApplyFormatHints<TNode>(TFormat* format, const TMaybe<TFormatHints>& formatHints)
+{
+    Y_VERIFY(format);
+    if (!formatHints) {
+        return;
+    }
+
+    ApplyEnableTypeConversion(format, *formatHints);
+
+    if (formatHints->SkipNullValuesForTNode_) {
+        Y_ENSURE_EX(
+            format->Config.AsString() == "yson",
+            TApiUsageError() << "SkipNullForTNode option must be used with yson format, actual format: " << format->Config.AsString());
+        format->Config.Attributes()["skip_null_values"] = formatHints->SkipNullValuesForTNode_;
+    }
+
+    if (formatHints->ComplexTypeMode_) {
+        Y_ENSURE_EX(
+            format->Config.AsString() == "yson",
+            TApiUsageError() << "ComplexTypeMode option must be used with yson format, actual format: "
+                << format->Config.AsString());
+        format->Config.Attributes()["complex_type_mode"] = ToString(*formatHints->ComplexTypeMode_);
+    }
+}
+
+template <>
+void ApplyFormatHints<TYaMRRow>(TFormat* format, const TMaybe<TFormatHints>& formatHints)
+{
+    Y_VERIFY(format);
+    if (!formatHints) {
+        return;
+    }
+
+    ythrow TApiUsageError() << "Yamr format currently has no supported format hints";
+}
+
+template <>
+void ApplyFormatHints<::google::protobuf::Message>(TFormat* format, const TMaybe<TFormatHints>& formatHints)
+{
+    Y_VERIFY(format);
+    if (!formatHints) {
+        return;
+    }
+
+    ythrow TApiUsageError() << "Protobuf format currently has no supported format hints";
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace NYT::NDetail