lib/sequel/adapters/shared/mysql.rb in sequel-4.1.1 vs lib/sequel/adapters/shared/mysql.rb in sequel-4.2.0

@@ -399,9 +399,10 @@
       end
 
       # Handle MySQL specific index SQL syntax
       def index_definition_sql(table_name, index)
         index_name = quote_identifier(index[:name] || default_index_name(table_name, index[:columns]))
+        raise Error, "Partial indexes are not supported for this database" if index[:where] && !supports_partial_indexes?
         index_type = case index[:type]
         when :full_text
           "FULLTEXT "
         when :spatial
           "SPATIAL "