fix

Author: HeartLinked

src/iceberg/transform.cc

@@ -39,30 +39,6 @@ constexpr std::string_view kHourName = "hour";
 constexpr std::string_view kVoidName = "void";
 }  // namespace
 
-constexpr std::string_view TransformTypeToString(TransformType type) {
-  switch (type) {
-    case TransformType::kUnknown:
-      return kUnknownName;
-    case TransformType::kIdentity:
-      return kIdentityName;
-    case TransformType::kBucket:
-      return kBucketName;
-    case TransformType::kTruncate:
-      return kTruncateName;
-    case TransformType::kYear:
-      return kYearName;
-    case TransformType::kMonth:
-      return kMonthName;
-    case TransformType::kDay:
-      return kDayName;
-    case TransformType::kHour:
-      return kHourName;
-    case TransformType::kVoid:
-      return kVoidName;
-  }
-  std::unreachable();
-}
-
 std::shared_ptr<Transform> Transform::Identity() {
   static auto instance =
       std::shared_ptr<Transform>(new Transform(TransformType::kIdentity));

src/iceberg/transform.h

@@ -57,7 +57,29 @@ enum class TransformType {
 };
 
 /// \brief Get the relative transform name
-ICEBERG_EXPORT constexpr std::string_view TransformTypeToString(TransformType type);
+ICEBERG_EXPORT constexpr std::string_view TransformTypeToString(TransformType type) {
+  switch (type) {
+    case TransformType::kUnknown:
+      return "unknown";
+    case TransformType::kIdentity:
+      return "identity";
+    case TransformType::kBucket:
+      return "bucket";
+    case TransformType::kTruncate:
+      return "truncate";
+    case TransformType::kYear:
+      return "year";
+    case TransformType::kMonth:
+      return "month";
+    case TransformType::kDay:
+      return "day";
+    case TransformType::kHour:
+      return "hour";
+    case TransformType::kVoid:
+      return "void";
+  }
+  std::unreachable();
+}
 
 /// \brief Represents a transform used in partitioning or sorting in Iceberg.
 ///