IN with Enums numeric values

dbms/src/Interpreters/convertFieldToType.cpp

@@ -181,9 +181,17 @@ Field convertFieldToTypeImpl(const Field & src, const IDataType & type, const ID
         if (!which_type.isDateOrDateTime() && !which_type.isUUID() && !which_type.isEnum())
             throw Exception{"Logical error: unknown numeric type " + type.getName(), ErrorCodes::LOGICAL_ERROR};
 
-        /// Numeric values for Enums should not be used directly in IN section
-        if (src.getType() == Field::Types::UInt64 && !which_type.isEnum())
+        if (which_type.isEnum() && (src.getType() == Field::Types::UInt64 || src.getType() == Field::Types::Int64))
+        {
+            /// Convert UInt64 or Int64 to Enum's value
+            return dynamic_cast<const IDataTypeEnum &>(type).castToValue(src);
+        }
+
+        if (which_type.isDateOrDateTime() && src.getType() == Field::Types::UInt64)
+        {
+            /// We don't need any conversion UInt64 is under type of Date and DateTime
             return src;
+        }
 
         if (src.getType() == Field::Types::String)
         {

dbms/src/TableFunctions/TableFunctionValues.cpp

@@ -3,6 +3,7 @@
 
 #include <Core/Block.h>
 #include <Storages/StorageValues.h>
+#include <DataTypes/DataTypeTuple.h>
 
 #include <Parsers/ASTExpressionList.h>
 #include <Parsers/ASTLiteral.h>
@@ -42,14 +43,15 @@ static void parseAndInsertValues(MutableColumns & res_columns, const ASTs & args
         for (size_t i = 1; i < args.size(); ++i)
         {
             const auto & [value_field, value_type_ptr] = evaluateConstantExpression(args[i], context);
+            const DataTypes & value_types_tuple = typeid_cast<const DataTypeTuple *>(value_type_ptr.get())->getElements();
             const TupleBackend & value_tuple = value_field.safeGet<Tuple>().toUnderType();
 
             if (value_tuple.size() != sample_block.columns())
                 throw Exception("Values size should match with number of columns", ErrorCodes::LOGICAL_ERROR);
 
             for (size_t j = 0; j < value_tuple.size(); ++j)
             {
-                Field value = convertFieldToType(value_tuple[j], *sample_block.getByPosition(j).type, value_type_ptr.get());
+                Field value = convertFieldToType(value_tuple[j], *sample_block.getByPosition(j).type, value_types_tuple[j].get());
                 res_columns[j]->insert(value);
             }
         }

dbms/tests/queries/0_stateless/01001_enums_in_in_section.reference

@@ -0,0 +1,6 @@
+find me
+and me
+also me
+find me
+and me
+also me

dbms/tests/queries/0_stateless/01001_enums_in_in_section.sql

@@ -0,0 +1,5 @@
+DROP TABLE IF EXISTS enums;
+CREATE TABLE enums AS VALUES('x Enum8(\'hello\' = 0, \'world\' = 1, \'foo\' = -1), y String', ('hello', 'find me'), (0, 'and me'), (-1, 'also me'), ('world', 'don\'t find me'));
+SELECT y FROM enums WHERE x IN (0, -1);
+SELECT y FROM enums WHERE x IN ('hello', -1);
+DROP TABLE enums;