UseStudio.CloudBackend/node_modules/mysql/lib/protocol/constants/field_flags.js

// Manually extracted from mysql-5.5.23/include/mysql_com.h
exports.NOT_NULL_FLAG     = 1; /* Field can't be NULL */
exports.PRI_KEY_FLAG      = 2; /* Field is part of a primary key */
exports.UNIQUE_KEY_FLAG   = 4; /* Field is part of a unique key */
exports.MULTIPLE_KEY_FLAG = 8; /* Field is part of a key */
exports.BLOB_FLAG         = 16; /* Field is a blob */
exports.UNSIGNED_FLAG     = 32; /* Field is unsigned */
exports.ZEROFILL_FLAG     = 64; /* Field is zerofill */
exports.BINARY_FLAG       = 128; /* Field is binary   */

/* The following are only sent to new clients */
exports.ENUM_FLAG             = 256; /* field is an enum */
exports.AUTO_INCREMENT_FLAG   = 512; /* field is a autoincrement field */
exports.TIMESTAMP_FLAG        = 1024; /* Field is a timestamp */
exports.SET_FLAG              = 2048; /* field is a set */
exports.NO_DEFAULT_VALUE_FLAG = 4096; /* Field doesn't have default value */
exports.ON_UPDATE_NOW_FLAG    = 8192; /* Field is set to NOW on UPDATE */
exports.NUM_FLAG              = 32768; /* Field is num (for clients) */