2 ms·

Thanks for the explanation, didn't know that. Is this true in most modern DBs? (I'm thinking MySQL and Postgres particularly).

• icebraining 14y ago
  Close enough in PostgreSQL. String columns larger than 256 actually use 4 bytes to indicate the length, but on the other hand, large strings are automatically compressed, so they may use less space than 4 + length. http://www.postgresql.org/docs/9.2/static/datatype-character.html http://www.postgresql.org/docs/9.2/static/datatype-character...