Methods, articles of manufacture, and systems for reducing network traffic for database transactions between a requesting client and a database server are provided. For some embodiments, the client may access statistical information regarding the data, such as that commonly contained in indexes (e.g., encoded vector indexes), conventionally generated for use by a query optimizer. For some embodiments, based on the statistical information regarding the data, the client may request that the server send small byte-code representations of data from the database, rather than the actual data. The small byte-code representations may be significantly smaller than the actual represented data, thus reducing network traffic between the client and server. The client may then retrieve the actual represented data from a corresponding data representation record.