Sort_addon_field Struct Reference

The structure Sort_addon_field describes the layout for field values appended to sorted values in records to be sorted in the sort buffer. More...

#include <sort_param.h>

Public Attributes
Field *	field
uint	null_offset
uint	max_length
uint8	null_bit

Detailed Description

The structure Sort_addon_field describes the layout for field values appended to sorted values in records to be sorted in the sort buffer.

Null bit maps for the appended values is placed before the values themselves. Offsets are from the last sorted field.

The structure is used to store values of the additional fields in the sort buffer. It is used also when these values are read from a temporary file/buffer in 'Filesort_info::unpack_addon_fields'.

Member Data Documentation

field

Field* Sort_addon_field::field

max_length

uint Sort_addon_field::max_length

null_bit

uint8 Sort_addon_field::null_bit

null_offset

uint Sort_addon_field::null_offset

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The documentation for this struct was generated from the following file:

• sql/sort_param.h