fix: wrong error message

Author: zhjwpku

src/iceberg/sort_order.cc

@@ -116,7 +116,7 @@ Result<std::unique_ptr<SortOrder>> SortOrder::Make(const Schema& schema, int32_t
   for (const auto& field : fields) {
     ICEBERG_ASSIGN_OR_RAISE(auto schema_field, schema.FindFieldById(field.source_id()));
     if (schema_field == std::nullopt) {
-      return InvalidArgument("Cannot find source column for sort field: {}", field);
+      return InvalidArgument("Cannot find schema field for sort field: {}", field);
     }
 
     const auto& source_type = schema_field.value().get().type();

src/iceberg/test/sort_order_test.cc

@@ -241,7 +241,7 @@ TEST_F(SortOrderMakeTest, MakeInvalidSortOrderFieldNotInSchema) {
   auto sort_order = SortOrder::Make(
       *schema_, 1, std::vector<SortField>{*sort_field1_, sort_field_invalid});
   EXPECT_THAT(sort_order, IsError(ErrorKind::kInvalidArgument));
-  EXPECT_THAT(sort_order, HasErrorMessage("Cannot find source column for sort field:"));
+  EXPECT_THAT(sort_order, HasErrorMessage("Cannot find schema field for sort field"));
 }
 
 TEST_F(SortOrderMakeTest, MakeUnboundSortOrder) {
@@ -254,7 +254,7 @@ TEST_F(SortOrderMakeTest, MakeUnboundSortOrder) {
   auto validate_status = sort_order.value()->Validate(*schema_);
   EXPECT_THAT(validate_status, IsError(ErrorKind::kInvalidArgument));
   EXPECT_THAT(validate_status,
-              HasErrorMessage("Cannot find source column for sort field:"));
+              HasErrorMessage("Cannot find schema field for sort field"));
 }
 
 }  // namespace iceberg