From 5336a8911794662d6a207c5e4adda14c93871562 Mon Sep 17 00:00:00 2001
From: Alexey Milovidov <milovidov@clickhouse.com>
Date: Wed, 13 Mar 2024 05:36:09 +0100
Subject: [PATCH] Continue

---
 src/Functions/FunctionsConversion.cpp | 56 +++++++++++++--------------
 1 file changed, 27 insertions(+), 29 deletions(-)

diff --git a/src/Functions/FunctionsConversion.cpp b/src/Functions/FunctionsConversion.cpp
index ffcb0086e27..af240f88560 100644
--- a/src/Functions/FunctionsConversion.cpp
+++ b/src/Functions/FunctionsConversion.cpp
@@ -644,6 +644,33 @@ struct ConvertImpl
             return DateTimeTransformImpl<FromDataType, ToDataType, ToDateTimeTransform64Signed<typename FromDataType::FieldType, UInt32, default_date_time_overflow_behavior>, false>::execute(
                 arguments, result_type, input_rows_count);
         }
+        else if constexpr ((
+                std::is_same_v<FromDataType, DataTypeInt8>
+                || std::is_same_v<FromDataType, DataTypeInt16>
+                || std::is_same_v<FromDataType, DataTypeInt32>
+                || std::is_same_v<FromDataType, DataTypeInt64>)
+            && std::is_same_v<ToDataType, DataTypeDateTime64>
+            && std::is_same_v<SpecialTag, ConvertDefaultBehaviorTag>)
+        {
+            return DateTimeTransformImpl<FromDataType, ToDataType, ToDateTime64TransformSigned<typename FromDataType::FieldType, default_date_time_overflow_behavior>, false>::execute(
+                arguments, result_type, input_rows_count);
+        }
+        else if constexpr (std::is_same_v<FromDataType, DataTypeUInt64>
+            && std::is_same_v<ToDataType, DataTypeDateTime64>
+            && std::is_same_v<SpecialTag, ConvertDefaultBehaviorTag>)
+        {
+            return DateTimeTransformImpl<FromDataType, ToDataType, ToDateTime64TransformUnsigned<UInt64, default_date_time_overflow_behavior>, false>::execute(
+                arguments, result_type, input_rows_count);
+        }
+        else if constexpr ((
+                std::is_same_v<FromDataType, DataTypeFloat32>
+                || std::is_same_v<FromDataType, DataTypeFloat64>)
+            && std::is_same_v<ToDataType, DataTypeDateTime64>
+            && std::is_same_v<SpecialTag, ConvertDefaultBehaviorTag>)
+        {
+            return DateTimeTransformImpl<FromDataType, ToDataType, ToDateTime64TransformFloat<FromDataType, typename FromDataType::FieldType, default_date_time_overflow_behavior>, false>::execute(
+                arguments, result_type, input_rows_count);
+        }
         else
         {
             using ColVecFrom = typename FromDataType::ColumnType;
@@ -893,35 +920,6 @@ struct ConvertImpl
 };
 
 
-template <typename Name, FormatSettings::DateTimeOverflowBehavior date_time_overflow_behavior>
-struct ConvertImpl<DataTypeInt8, DataTypeDateTime64, Name, ConvertDefaultBehaviorTag, date_time_overflow_behavior>
-    : DateTimeTransformImpl<DataTypeInt8, DataTypeDateTime64, ToDateTime64TransformSigned<Int8, date_time_overflow_behavior>, false> {};
-
-template <typename Name, FormatSettings::DateTimeOverflowBehavior date_time_overflow_behavior>
-struct ConvertImpl<DataTypeInt16, DataTypeDateTime64, Name, ConvertDefaultBehaviorTag, date_time_overflow_behavior>
-    : DateTimeTransformImpl<DataTypeInt16, DataTypeDateTime64, ToDateTime64TransformSigned<Int16, date_time_overflow_behavior>, false> {};
-
-template <typename Name, FormatSettings::DateTimeOverflowBehavior date_time_overflow_behavior>
-struct ConvertImpl<DataTypeInt32, DataTypeDateTime64, Name, ConvertDefaultBehaviorTag, date_time_overflow_behavior>
-    : DateTimeTransformImpl<DataTypeInt32, DataTypeDateTime64, ToDateTime64TransformSigned<Int32, date_time_overflow_behavior>, false> {};
-
-template <typename Name, FormatSettings::DateTimeOverflowBehavior date_time_overflow_behavior>
-struct ConvertImpl<DataTypeInt64, DataTypeDateTime64, Name, ConvertDefaultBehaviorTag, date_time_overflow_behavior>
-    : DateTimeTransformImpl<DataTypeInt64, DataTypeDateTime64, ToDateTime64TransformSigned<Int64, date_time_overflow_behavior>, false> {};
-
-template <typename Name, FormatSettings::DateTimeOverflowBehavior date_time_overflow_behavior>
-struct ConvertImpl<DataTypeUInt64, DataTypeDateTime64, Name, ConvertDefaultBehaviorTag, date_time_overflow_behavior>
-    : DateTimeTransformImpl<DataTypeUInt64, DataTypeDateTime64, ToDateTime64TransformUnsigned<UInt64, date_time_overflow_behavior>, false> {};
-
-template <typename Name, FormatSettings::DateTimeOverflowBehavior date_time_overflow_behavior>
-struct ConvertImpl<DataTypeFloat32, DataTypeDateTime64, Name, ConvertDefaultBehaviorTag, date_time_overflow_behavior>
-    : DateTimeTransformImpl<DataTypeFloat32, DataTypeDateTime64, ToDateTime64TransformFloat<DataTypeFloat32, Float32, date_time_overflow_behavior>, false> {};
-
-template <typename Name, FormatSettings::DateTimeOverflowBehavior date_time_overflow_behavior>
-struct ConvertImpl<DataTypeFloat64, DataTypeDateTime64, Name, ConvertDefaultBehaviorTag, date_time_overflow_behavior>
-    : DateTimeTransformImpl<DataTypeFloat64, DataTypeDateTime64, ToDateTime64TransformFloat<DataTypeFloat64, Float64, date_time_overflow_behavior>, false> {};
-
-
 /** Conversion of DateTime64 to Date or DateTime: discards fractional part.
  */
 template <typename Name, FormatSettings::DateTimeOverflowBehavior date_time_overflow_behavior>