database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

BUG#27927:Partition pruning not optimal with TO_DAYS and YEAR functions

Browse Source 
- Introduced val_int_endpoint() function which converts between func 
  argument intervals and func value intervals for monotonic functions.
- Made partition interval analyzer use part_expr->val_int_endpoint()
  to check if the edge values should be included.


mysql-test/r/partition_pruning.result:
  BUG#27927: Partition pruning not optimal with TO_DAYS and YEAR functions
  - Testcase
mysql-test/t/partition_pruning.test:
  BUG#27927: Partition pruning not optimal with TO_DAYS and YEAR functions
  - Testcase
sql/item.cc:
  BUG#27927: Partition pruning not optimal with TO_DAYS and YEAR functions
  - Added Item_field::val_int_endpoint() implementation
sql/item.h:
  BUG#27927: Partition pruning not optimal with TO_DAYS and YEAR functions
  - Added Item::val_int_endpoint() which converts intervals from argument
    space to function value space for unary monotonic functions.
sql/item_timefunc.cc:
  BUG#27927: Partition pruning not optimal with TO_DAYS and YEAR functions
  - Added val_int_endpoint() for TO_DAYS and YEAR functions.
sql/item_timefunc.h:
  BUG#27927: Partition pruning not optimal with TO_DAYS and YEAR functions
  - Added val_int_endpoint() for TO_DAYS and YEAR functions.
sql/partition_info.h:
  BUG#27927: Partition pruning not optimal with TO_DAYS and YEAR functions
  - Removed partition_info::range_analysis_include_bounds as it is no longer 
    needed.
sql/sql_partition.cc:
  BUG#27927: Partition pruning not optimal with TO_DAYS and YEAR functions
  - Make partition interval analyzer use part_expr->val_int_endpoint() to 
    check if the edge values should be included.
This commit is contained in:
unknown
2007-09-14 14:18:42 +04:00
parent 9d01633571
commit 4aaabb06c0
8 changed files with 182 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
sql/sql_partition.cc
View File

@ -2743,7 +2743,8 @@ uint32 get_list_array_idx_for_endpoint(partition_info *part_info,
uint min_list_index= 0, max_list_index= part_info->no_list_values - 1;
longlong list_value;
/* Get the partitioning function value for the endpoint */
longlong part_func_value= part_val_int(part_info->part_expr);
longlong part_func_value=
part_info->part_expr->val_int_endpoint(left_endpoint, &include_endpoint);
bool unsigned_flag= part_info->part_expr->unsigned_flag;
DBUG_ENTER("get_list_array_idx_for_endpoint");
@ -2887,7 +2888,9 @@ uint32 get_partition_id_range_for_endpoint(partition_info *part_info,
uint max_partition= part_info->no_parts - 1;
uint min_part_id= 0, max_part_id= max_partition, loc_part_id;
/* Get the partitioning function value for the endpoint */
longlong part_func_value= part_val_int(part_info->part_expr);
longlong part_func_value=
part_info->part_expr->val_int_endpoint(left_endpoint, &include_endpoint);
bool unsigned_flag= part_info->part_expr->unsigned_flag;
DBUG_ENTER("get_partition_id_range_for_endpoint");
@ -6590,8 +6593,6 @@ void make_used_partitions_str(partition_info *part_info, String *parts_str)
#ifdef WITH_PARTITION_STORAGE_ENGINE
static void set_up_range_analysis_info(partition_info *part_info)
{
enum_monotonicity_info minfo;
/* Set the catch-all default */
part_info->get_part_iter_for_interval= NULL;
part_info->get_subpart_iter_for_interval= NULL;
@ -6603,11 +6604,8 @@ static void set_up_range_analysis_info(partition_info *part_info)
switch (part_info->part_type) {
case RANGE_PARTITION:
case LIST_PARTITION:
minfo= part_info->part_expr->get_monotonicity_info();
if (minfo != NON_MONOTONIC)
if (part_info->part_expr->get_monotonicity_info() != NON_MONOTONIC)
{
part_info->range_analysis_include_bounds=
test(minfo == MONOTONIC_INCREASING);
part_info->get_part_iter_for_interval=
get_part_iter_for_interval_via_mapping;
goto setup_subparts;
@ -6775,8 +6773,7 @@ int get_part_iter_for_interval_via_mapping(partition_info *part_info,
index-in-ordered-array-of-list-constants (for LIST) space.
*/
store_key_image_to_rec(field, min_value, field_len);
bool include_endp= part_info->range_analysis_include_bounds ||
!test(flags & NEAR_MIN);
bool include_endp= !test(flags & NEAR_MIN);
part_iter->part_nums.start= get_endpoint(part_info, 1, include_endp);
part_iter->part_nums.cur= part_iter->part_nums.start;
if (part_iter->part_nums.start == max_endpoint_val)
@ -6790,8 +6787,7 @@ int get_part_iter_for_interval_via_mapping(partition_info *part_info,
else
{
store_key_image_to_rec(field, max_value, field_len);
bool include_endp= part_info->range_analysis_include_bounds ||
!test(flags & NEAR_MAX);
bool include_endp= !test(flags & NEAR_MAX);
part_iter->part_nums.end= get_endpoint(part_info, 0, include_endp);
if (part_iter->part_nums.start == part_iter->part_nums.end &&
!part_iter->ret_null_part)