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| author | Mikael Ronstrom <mikael@mysql.com> | 2009-09-15 17:07:52 +0200 |
|---|---|---|
| committer | Mikael Ronstrom <mikael@mysql.com> | 2009-09-15 17:07:52 +0200 |
| commit | 6942c25e733967e4d3da8aaad3b2e9a2832dc33e (patch) | |
| tree | ee714c9620c9eaa85fba98f4423487d638cc9edf /sql/sql_partition.h | |
| parent | 905d715f10e711860311e0a10488c6bb5e19ee49 (diff) | |
| download | mariadb-git-6942c25e733967e4d3da8aaad3b2e9a2832dc33e.tar.gz | |
WL#3352, Introducing Column list partitioning, makes it possible to partition on most data types, makes it possible to prune on multi-field partitioning
Diffstat (limited to 'sql/sql_partition.h')
| -rw-r--r-- | sql/sql_partition.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sql/sql_partition.h b/sql/sql_partition.h index 282e24f1853..7902cc77877 100644 --- a/sql/sql_partition.h +++ b/sql/sql_partition.h @@ -173,9 +173,12 @@ typedef struct st_partition_iter SYNOPSIS get_partitions_in_range_iter() part_info Partitioning info - is_subpart + is_subpart + store_length_array Length of fields packed in opt_range_key format min_val Left edge, field value in opt_range_key format. - max_val Right edge, field value in opt_range_key format. + max_val Right edge, field value in opt_range_key format. + min_len Length of minimum value + max_len Length of maximum value flags Some combination of NEAR_MIN, NEAR_MAX, NO_MIN_RANGE, NO_MAX_RANGE. part_iter Iterator structure to be initialized @@ -191,8 +194,9 @@ typedef struct st_partition_iter The set of partitions is returned by initializing an iterator in *part_iter NOTES - There are currently two functions of this type: + There are currently three functions of this type: - get_part_iter_for_interval_via_walking + - get_part_iter_for_interval_cols_via_map - get_part_iter_for_interval_via_mapping RETURN @@ -203,7 +207,9 @@ typedef struct st_partition_iter typedef int (*get_partitions_in_range_iter)(partition_info *part_info, bool is_subpart, + uint32 *store_length_array, uchar *min_val, uchar *max_val, + uint min_len, uint max_len, uint flags, PARTITION_ITERATOR *part_iter); |