| MySQL 5.6.14 Source Code Document
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| Public Attributes | |
| int16 | type | 
| uint16 | length | 
| uint32 | offset | 
| uint8 | null_bit | 
| uint16 | null_pos | 
| void(* | unpack )(struct st_columndef *rec, struct st_mi_bit_buff *buff, uchar *start, uchar *end) | 
| enum en_fieldtype | base_type | 
| uint | space_length_bits | 
| uint | pack_type | 
| MI_DECODE_TREE * | huff_tree |