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BUG#48165, needed to introduce length restrictions on partitioning fields to ensure that no stack overruns occur

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This commit is contained in:
Mikael Ronstrom
2009-10-28 01:11:17 +01:00
parent cc43a2089c
commit 10fed1aca0
11 changed files with 98 additions and 18 deletions
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8
sql/opt_range.cc
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@ -3600,12 +3600,8 @@ static bool create_partition_index_description(PART_PRUNE_PARAM *ppar)
{
key_part->key= 0;
key_part->part= part;
key_part->store_length= key_part->length= (uint16) (*field)->key_length();
if ((*field)->real_maybe_null())
key_part->store_length+= HA_KEY_NULL_LENGTH;
if ((*field)->type() == MYSQL_TYPE_BLOB ||
(*field)->real_type() == MYSQL_TYPE_VARCHAR)
key_part->store_length+= HA_KEY_BLOB_LENGTH;
key_part->length= (uint16)get_partition_field_store_length(*field);
key_part->store_length= key_part->length;
DBUG_PRINT("info", ("part %u length %u store_length %u", part,
key_part->length, key_part->store_length));