diff --git a/src/object-store/results.cpp b/src/object-store/results.cpp
index ea591276..32b00dda 100644
--- a/src/object-store/results.cpp
+++ b/src/object-store/results.cpp
@@ -171,9 +171,10 @@ size_t Results::index_of(Row const& row)
         throw DetatchedAccessorException{};
     }
     if (m_table && row.get_table() != m_table) {
-        throw IncorrectTableException{
-            ObjectStore::object_type_for_table_name(m_table->get_name()),
-            ObjectStore::object_type_for_table_name(row.get_table()->get_name())};
+        throw IncorrectTableException(object_schema.name,
+            ObjectStore::object_type_for_table_name(row.get_table()->get_name()),
+            "Attempting to get the index of a Row of the wrong type"
+        );
     }
     return index_of(row.get_index());
 }
@@ -323,11 +324,6 @@ TableView Results::get_tableview()
     REALM_UNREACHABLE();
 }
 
-StringData Results::get_object_type() const noexcept
-{
-    return ObjectStore::object_type_for_table_name(m_table->get_name());
-}
-
 Results Results::sort(realm::SortOrder&& sort) const
 {
     return Results(m_realm, object_schema, get_query(), std::move(sort));
@@ -338,8 +334,10 @@ Results Results::filter(Query&& q) const
     return Results(m_realm, object_schema, get_query().and_query(std::move(q)), get_sort());
 }
 
-Results::UnsupportedColumnTypeException::UnsupportedColumnTypeException(size_t column, const Table* table) {
-    column_index = column;
-    column_name = table->get_column_name(column);
-    column_type = table->get_column_type(column);
+Results::UnsupportedColumnTypeException::UnsupportedColumnTypeException(size_t column, const Table* table)
+: column_index(column)
+, column_name(table->get_column_name(column))
+, column_type(table->get_column_type(column))
+, std::runtime_error((std::string)"Operation not supported on '" + table->get_column_name(column).data() + "' columns")
+{
 }
diff --git a/src/object-store/shared_realm.cpp b/src/object-store/shared_realm.cpp
index aeeeaa28..c43f27db 100644
--- a/src/object-store/shared_realm.cpp
+++ b/src/object-store/shared_realm.cpp
@@ -193,13 +193,13 @@ SharedRealm Realm::get_shared_realm(Config config)
     return realm;
 }
 
-bool Realm::update_schema(std::unique_ptr<const Schema> schema, uint64_t version)
+bool Realm::update_schema(std::unique_ptr<Schema> schema, uint64_t version)
 {
     schema->validate();
 
     bool needs_update = !m_config.read_only && (m_config.schema_version != version || ObjectStore::needs_update(*m_config.schema, *schema));
     if (!needs_update) {
-        ObjectStore::verify_schema(*m_config.schema, const_cast<Schema &>(*schema), m_config.read_only);
+        ObjectStore::verify_schema(*m_config.schema, *schema, m_config.read_only);
         m_config.schema = std::move(schema);
         m_config.schema_version = version;
         return false;
diff --git a/src/object-store/shared_realm.hpp b/src/object-store/shared_realm.hpp
index ffb86937..85e42224 100644
--- a/src/object-store/shared_realm.hpp
+++ b/src/object-store/shared_realm.hpp
@@ -52,7 +52,7 @@ namespace realm {
             bool disable_format_upgrade = false;
             std::vector<char> encryption_key;
 
-            std::unique_ptr<const Schema> schema;
+            std::unique_ptr<Schema> schema;
             uint64_t schema_version = ObjectStore::NotVersioned;
 
             MigrationFunction migration_function;
@@ -80,7 +80,7 @@ namespace realm {
         // on the Config, and the resulting Schema and version with updated
         // column mappings are set on the realms config upon success.
         // returns if any changes were made
-        bool update_schema(std::unique_ptr<const Schema> schema, uint64_t version);
+        bool update_schema(std::unique_ptr<Schema> schema, uint64_t version);
 
         static uint64_t get_schema_version(Config const& config);