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cleanup: part_func_string and subpart_func_string

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Remove now-unused part_func_string and subpart_func_string
from partition_info.
This commit is contained in:
Sergei Golubchik
2017-06-27 20:47:46 +02:00
parent 785e2248bd
commit e1093e2464
3 changed files with 0 additions and 44 deletions
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33
sql/sql_partition.cc
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@ -4110,39 +4110,6 @@ bool mysql_unpack_partition(THD *thd,
DBUG_ASSERT(part_info->default_engine_type == default_db_type);
DBUG_ASSERT(part_info->default_engine_type->db_type != DB_TYPE_UNKNOWN);
DBUG_ASSERT(part_info->default_engine_type != partition_hton);
{
/*
This code part allocates memory for the serialised item information for
the partition functions. In most cases this is not needed but if the
table is used for SHOW CREATE TABLES or ALTER TABLE that modifies
partition information it is needed and the info is lost if we don't
save it here so unfortunately we have to do it here even if in most
cases it is not needed. This is a consequence of that item trees are
not serialisable.
*/
uint part_func_len= part_info->part_func_len;
uint subpart_func_len= part_info->subpart_func_len;
char *part_func_string= NULL;
char *subpart_func_string= NULL;
if ((part_func_len &&
!((part_func_string= (char*) thd->alloc(part_func_len)))) ||
(subpart_func_len &&
!((subpart_func_string= (char*) thd->alloc(subpart_func_len)))))
{
mem_alloc_error(part_func_len);
thd->free_items();
goto end;
}
if (part_func_len)
memcpy(part_func_string, part_info->part_func_string, part_func_len);
if (subpart_func_len)
memcpy(subpart_func_string, part_info->subpart_func_string,
subpart_func_len);
part_info->part_func_string= part_func_string;
part_info->subpart_func_string= subpart_func_string;
}
result= FALSE;
end:
end_lex_with_single_table(thd, table, old_lex);