...
mysql> describe marcRecords;
+---------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------------+-------------+------+-----+---------+-------+
| marc | mediumtext | YES | | NULL | |
| json | mediumtext | YES | | NULL | |
| instanceId | varchar(36) | YES | | NULL | |
| shadowFlag | varchar(1) | YES | | NULL | |
| catalogedDate | varchar(8) | YES | | NULL | |
| marcHoldings | varchar(1) | YES | | NULL | |
| catalogKey | int(11) | NO | PRI | NULL | |
+---------------+-------------+------+-----+---------+-------+
...