mySQL中的数据丢失使用MEDIUMTEXT和页面

Somehow GROUP_CONCAT is able to round up six "pages" of an article (each stored as TEXT) and toss them into a single MEDIUMTEXT without losing any data, but there are some one-page articles that are longer than normal (but still obviously fit within the TEXT data type) that lose a significant amount of data. Anyone know what's up?Somehow GROUP_CONCAT is able to round up six "p