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Merge c-870ae253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/clean-mysql-5.1-new

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into  c-870ae253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/bug18962


mysql-test/r/partition_pruning.result:
  Auto merged
sql/partition_info.cc:
  Auto merged
This commit is contained in:
unknown 2006-04-20 14:16:27 -04:00
commit e66e612931
5 changed files with 94 additions and 18 deletions
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48
sql/partition_info.cc
View file

@ -91,7 +91,7 @@ partition_info *partition_info::get_clone()
#define MAX_PART_NAME_SIZE 16
char *partition_info::create_default_partition_names(uint part_no, uint no_parts,
uint start_no, bool is_subpart)
uint start_no)
{
char *ptr= sql_calloc(no_parts*MAX_PART_NAME_SIZE);
char *move_ptr= ptr;
@ -102,10 +102,7 @@ char *partition_info::create_default_partition_names(uint part_no, uint no_parts
{
do
{
if (is_subpart)
my_sprintf(move_ptr, (move_ptr,"p%usp%u", part_no, (start_no + i)));
else
my_sprintf(move_ptr, (move_ptr,"p%u", (start_no + i)));
my_sprintf(move_ptr, (move_ptr,"p%u", (start_no + i)));
move_ptr+=MAX_PART_NAME_SIZE;
} while (++i < no_parts);
}
@ -117,6 +114,35 @@ char *partition_info::create_default_partition_names(uint part_no, uint no_parts
}
/*
Create a unique name for the subpartition as part_name'sp''subpart_no'
SYNOPSIS
create_subpartition_name()
subpart_no Number of subpartition
part_name Name of partition
RETURN VALUES
>0 A reference to the created name string
0 Memory allocation error
*/
char *create_subpartition_name(uint subpart_no, const char *part_name)
{
uint size_alloc= strlen(part_name) + MAX_PART_NAME_SIZE;
char *ptr= sql_calloc(size_alloc);
DBUG_ENTER("create_subpartition_name");
if (likely(ptr != NULL))
{
my_sprintf(ptr, (ptr, "%ssp%u", part_name, subpart_no));
}
else
{
mem_alloc_error(size_alloc);
}
DBUG_RETURN(ptr);
}
/*
Set up all the default partitions not set-up by the user in the SQL
statement. Also perform a number of checks that the user hasn't tried
@ -167,8 +193,7 @@ bool partition_info::set_up_default_partitions(handler *file, ulonglong max_rows
goto end;
}
if (unlikely((!(default_name= create_default_partition_names(0, no_parts,
start_no,
FALSE)))))
start_no)))))
goto end;
i= 0;
do
@ -238,18 +263,17 @@ bool partition_info::set_up_default_subpartitions(handler *file,
{
part_elem= part_it++;
j= 0;
name_ptr= create_default_partition_names(i, no_subparts, (uint)0, TRUE);
if (unlikely(!name_ptr))
goto end;
do
{
partition_element *subpart_elem= new partition_element();
if (likely(subpart_elem != 0 &&
(!part_elem->subpartitions.push_back(subpart_elem))))
{
char *ptr= create_subpartition_name(j, part_elem->partition_name);
if (!ptr)
goto end;
subpart_elem->engine_type= default_engine_type;
subpart_elem->partition_name= name_ptr;
name_ptr+= MAX_PART_NAME_SIZE;
subpart_elem->partition_name= ptr;
}
else
{