schema

const (
	TYPE_NUMBER    = iota + 1 // tinyint, smallint, mediumint, int, bigint, year
	TYPE_FLOAT                // float, double
	TYPE_ENUM                 // enum
	TYPE_SET                  // set
	TYPE_STRING               // other
	TYPE_DATETIME             // datetime
	TYPE_TIMESTAMP            // timestamp
	TYPE_DATE                 // date
	TYPE_TIME                 // time
	TYPE_BIT                  // bit
)