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_info *	part_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 { ... } PARTITION_ITERATOR::@152

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

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

• sql/partition_info.h