// Manually extracted from mysql-5.5.23/include/mysql_com.h
exports.NOT_NULL     = 1; /* Field can't be NULL */
exports.PRI_KEY      = 2; /* Field is part of a primary key */
exports.UNIQUE_KEY   = 4; /* Field is part of a unique key */
exports.MULTIPLE_KEY = 8; /* Field is part of a key */
exports.BLOB         = 16; /* Field is a blob */
exports.UNSIGNED     = 32; /* Field is unsigned */
exports.ZEROFILL     = 64; /* Field is zerofill */
exports.BINARY       = 128; /* Field is binary   */

/* The following are only sent to new clients */
exports.ENUM             = 256; /* field is an enum */
exports.AUTO_INCREMENT   = 512; /* field is a autoincrement field */
exports.TIMESTAMP        = 1024; /* Field is a timestamp */
exports.SET              = 2048; /* field is a set */
exports.NO_DEFAULT_VALUE = 4096; /* Field doesn't have default value */
exports.ON_UPDATE_NOW    = 8192; /* Field is set to NOW on UPDATE */
exports.NUM              = 32768; /* Field is num (for clients) */