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merge of bug#1364811 into mysql-5.5

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This commit is contained in:
Mattias Jonsson
2012-03-14 21:57:15 +01:00
parent cfea7c7dfc f8eb62625f
commit aaf0e5d604
5 changed files with 289 additions and 148 deletions
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18
sql/ha_partition.h
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@ -177,6 +177,12 @@ private:
ha_rows m_bulk_inserted_rows;
/** used for prediction of start_bulk_insert rows */
enum_monotonicity_info m_part_func_monotonicity_info;
/** Sorted array of partition ids in descending order of number of rows. */
uint32 *m_part_ids_sorted_by_num_of_records;
/* Compare function for my_qsort2, for reversed order. */
static int compare_number_of_records(ha_partition *me,
const uint32 *a,
const uint32 *b);
public:
handler *clone(const char *name, MEM_ROOT *mem_root);
virtual void set_part_info(partition_info *part_info)
@ -584,15 +590,9 @@ public:
*/
private:
/*
Helper function to get the minimum number of partitions to use for
the optimizer hints/cost calls.
*/
void partitions_optimizer_call_preparations(uint *num_used_parts,
uint *check_min_num,
uint *first);
ha_rows estimate_rows(bool is_records_in_range, uint inx,
key_range *min_key, key_range *max_key);
/* Helper functions for optimizer hints. */
ha_rows min_rows_for_estimate();
uint get_biggest_used_partition(uint *part_index);
public:
/*