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Added new calls for WL#1892 NDB Handler: Add support for CREATE/DROP INDEX

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unknown 2006-01-13 11:51:30 +01:00
parent a3748cda91
commit ac48680ed9
2 changed files with 81 additions and 0 deletions
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73
sql/ha_ndbcluster.cc
View File

@ -4380,6 +4380,40 @@ int ha_ndbcluster::create_ndb_index(const char *name,
DBUG_RETURN(0);
}
/*
Add an index on-line to a table
*/
int ha_ndbcluster::add_index(TABLE *table_arg,
KEY *key_info, uint num_of_keys)
{
DBUG_ENTER("ha_ndbcluster::add_index");
DBUG_PRINT("info", ("ha_ndbcluster::add_index to table %s",
table_arg->s->table_name));
int error= 0;
uint idx;
for (idx= 0; idx < num_of_keys; idx++)
{
KEY *key= key_info + idx;
KEY_PART_INFO *key_part= key->key_part;
KEY_PART_INFO *end= key_part + key->key_parts;
NDB_INDEX_TYPE idx_type= get_index_type_from_key(idx, key);
DBUG_PRINT("info", ("Adding index: '%s'", key_info[idx].name));
// Add fields to key_part struct
for (; key_part != end; key_part++)
key_part->field= table->field[key_part->fieldnr];
// Check index type
// Create index in ndb
if((error= create_index(key_info[idx].name, key, idx_type, idx)))
break;
}
DBUG_RETURN(error);
}
/*
Drop an index in ndb
*/
int ha_ndbcluster::drop_ndb_index(const char *name)
{
DBUG_ENTER("ha_ndbcluster::drop_index");
@ -4389,6 +4423,45 @@ int ha_ndbcluster::drop_ndb_index(const char *name)
DBUG_RETURN(dict->dropIndex(name, m_tabname));
}
/*
Mark one or several indexes for deletion. and
renumber the remaining indexes
*/
int ha_ndbcluster::prepare_drop_index(TABLE *table_arg,
uint *key_num, uint num_of_keys)
{
DBUG_ENTER("ha_ndbcluster::prepare_drop_index");
// Mark indexes for deletion
uint idx;
for (idx= 0; idx < num_of_keys; idx++)
{
DBUG_PRINT("info", ("ha_ndbcluster::prepare_drop_index %u", *key_num));
m_index[*key_num++].status= TO_BE_DROPPED;
}
// Renumber indexes
THD *thd= current_thd;
Thd_ndb *thd_ndb= get_thd_ndb(thd);
Ndb *ndb= thd_ndb->ndb;
DBUG_RETURN(renumber_indexes(ndb, table_arg));
}
/*
Really drop all indexes marked for deletion
*/
int ha_ndbcluster::final_drop_index(TABLE *table_arg)
{
DBUG_ENTER("ha_ndbcluster::final_drop_index");
DBUG_PRINT("info", ("ha_ndbcluster::final_drop_index"));
int error= 0;
// Really drop indexes
THD *thd= current_thd;
Thd_ndb *thd_ndb= get_thd_ndb(thd);
Ndb *ndb= thd_ndb->ndb;
error= drop_indexes(ndb, table_arg);
DBUG_RETURN(error);
}
/*
Rename a table in NDB Cluster
*/

8
sql/ha_ndbcluster.h
View File

@ -564,6 +564,14 @@ class ha_ndbcluster: public handler
const char * table_type() const;
const char ** bas_ext() const;
ulong table_flags(void) const;
ulong alter_table_flags(void) const
{
return (HA_ONLINE_ADD_INDEX | HA_ONLINE_DROP_INDEX |
HA_ONLINE_ADD_UNIQUE_INDEX | HA_ONLINE_DROP_UNIQUE_INDEX);
}
int add_index(TABLE *table_arg, KEY *key_info, uint num_of_keys);
int prepare_drop_index(TABLE *table_arg, uint *key_num, uint num_of_keys);
int final_drop_index(TABLE *table_arg);
ulong partition_flags(void) const
{
return (HA_CAN_PARTITION | HA_CAN_UPDATE_PARTITION_KEY |