MySQL  8.0.27
Source Code Documentation
PARTITION_ITERATOR Struct Reference

Partition set iterator. More...

#include <partition_info.h>

Classes

struct  st_field_value_range
 
struct  st_part_num_range
 

Public Attributes

partition_iter_func get_next
 
bool ret_null_part
 
bool ret_null_part_orig
 
union {
   struct st_part_num_range   part_nums
 
   struct st_field_value_range   field_vals
 
}; 
 
partition_infopart_info
 

Detailed Description

Partition set iterator.

Used to enumerate a set of [sub]partitions obtained in partition interval analysis (see get_partitions_in_range_iter).

For the user, the only meaningful field is get_next, which may be used as follows: part_iterator.get_next(&part_iterator);

Initialization is done by any of the following calls:

  • get_partitions_in_range_iter-type function call
  • init_single_partition_iterator()
  • init_all_partitions_iterator() Cleanup is not needed.

Member Data Documentation

◆ 

union { ... }

◆ field_vals

struct st_field_value_range PARTITION_ITERATOR::field_vals

◆ get_next

partition_iter_func PARTITION_ITERATOR::get_next

◆ part_info

partition_info* PARTITION_ITERATOR::part_info

◆ part_nums

struct st_part_num_range PARTITION_ITERATOR::part_nums

◆ ret_null_part

bool PARTITION_ITERATOR::ret_null_part

◆ ret_null_part_orig

bool PARTITION_ITERATOR::ret_null_part_orig

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