/*
* pt_find_users_class () -
* return: class object if found
* parser(in):
* name(in/out):
*/
DB_OBJECT *
pt_find_users_class (PARSER_CONTEXT * parser, PT_NODE * name)
{
DB_OBJECT *object;
object = db_find_class (name->info.name.original);
if (!object)
{
PT_ERRORmf (parser, name, MSGCAT_SET_PARSER_SEMANTIC, MSGCAT_SEMANTIC_CLASS_DOES_NOT_EXIST,
name->info.name.original);
}
name->info.name.db_object = object;
pt_check_user_owns_class (parser, name);
return object;
}
static PT_NODE *
pt_check_access_status (PARSER_CONTEXT * parser, PT_NODE * node)
{
DB_VALUE oid_val;
MOP classop;
PT_NODE *entity = NULL;
PT_NODE *derived_table = NULL;
PT_NODE *arg = NULL;
if (!au_is_dba_group_member (Au_user))
{
PT_ERRORmf (parser, NULL, MSGCAT_SET_ERROR, -(ER_AU_DBA_ONLY), "show access status");
return node;
}
entity = node->info.query.q.select.from;
assert (entity != NULL);
derived_table = entity->info.spec.derived_table;
assert (derived_table != NULL);
classop = sm_find_class ("db_user");
if (classop == NULL)
{
assert (er_errid () != NO_ERROR);
PT_ERRORc (parser, node, er_msg ());
return node;
}
db_make_oid (&oid_val, &classop->oid_info.oid);
arg = pt_dbval_to_value (parser, &oid_val);
derived_table->info.showstmt.show_args = parser_append_node (arg, derived_table->info.showstmt.show_args);
return node;
}
/*
* pt_check_show_heap () - check table exists or not
* return: PT_NODE pointer
*
* parser(in):
* node(in):
*/
static PT_NODE *
pt_check_table_in_show_heap (PARSER_CONTEXT * parser, PT_NODE * node)
{
int error = NO_ERROR;
PT_NODE *show_args_node = NULL, *spec, *derived_table;
PT_NODE *partition_node = NULL;
SHOWSTMT_TYPE show_type;
int partition_type = DB_NOT_PARTITIONED_CLASS;
const char *table_name = NULL;
MOP cls;
SM_CLASS *sm_class = NULL;
int save;
if (node->node_type != PT_SELECT)
{
return node;
}
spec = node->info.query.q.select.from;
assert (spec != NULL);
derived_table = spec->info.spec.derived_table;
assert (derived_table != NULL);
show_type = derived_table->info.showstmt.show_type;
assert (show_type == SHOWSTMT_HEAP_HEADER || show_type == SHOWSTMT_ALL_HEAP_HEADER
|| show_type == SHOWSTMT_HEAP_CAPACITY || show_type == SHOWSTMT_ALL_HEAP_CAPACITY);
show_args_node = derived_table->info.showstmt.show_args;
assert (show_args_node != NULL);
assert (show_args_node->node_type == PT_VALUE);
assert (show_args_node->type_enum == PT_TYPE_CHAR);
table_name = (const char *) show_args_node->info.value.data_value.str->bytes;
cls = sm_find_class (table_name);
if (cls == NULL)
{
PT_ERRORmf (parser, show_args_node, MSGCAT_SET_ERROR, -(ER_LC_UNKNOWN_CLASSNAME), table_name);
return node;
}
AU_DISABLE (save);
error = au_fetch_class_force (cls, &sm_class, AU_FETCH_READ);
AU_ENABLE (save);
if (error == NO_ERROR)
{
if (sm_get_class_type (sm_class) != SM_CLASS_CT)
{
PT_ERRORm (parser, show_args_node, MSGCAT_SET_ERROR, -(ER_OBJ_NOT_A_CLASS));
return node;
}
}
error = sm_partitioned_class_type (cls, &partition_type, NULL, NULL);
if (error != NO_ERROR)
{
PT_ERRORc (parser, show_args_node, er_msg ());
return node;
}
partition_node = pt_make_integer_value (parser, partition_type);
if (partition_node == NULL)
{
PT_INTERNAL_ERROR (parser, "allocate new node");
return node;
}
parser_append_node (partition_node, show_args_node);
return node;
}
/*
* pt_check_show_index () - semantic check for show index.
* return:
* parser(in):
* node(in):
*/
static PT_NODE *
pt_check_show_index (PARSER_CONTEXT * parser, PT_NODE * node)
{
PT_NODE *show_args_node = NULL;
MOP cls;
const char *table_name = NULL;
const char *index_name = NULL;
SM_CLASS *sm_class = NULL;
SM_CLASS_CONSTRAINT *sm_all_constraints = NULL;
SM_CLASS_CONSTRAINT *sm_constraint = NULL;
PT_NODE *entity = NULL;
PT_NODE *derived_table = NULL;
SHOWSTMT_TYPE show_type;
int error = NO_ERROR;
int save;
int partition_type = DB_NOT_PARTITIONED_CLASS;
PT_NODE *partition_node = NULL;
if (node->node_type != PT_SELECT)
{
return node;
}
entity = node->info.query.q.select.from;
assert (entity != NULL);
derived_table = entity->info.spec.derived_table;
assert (derived_table != NULL);
show_type = derived_table->info.showstmt.show_type;
assert (show_type == SHOWSTMT_INDEX_HEADER || show_type == SHOWSTMT_INDEX_CAPACITY
|| show_type == SHOWSTMT_ALL_INDEXES_HEADER || show_type == SHOWSTMT_ALL_INDEXES_CAPACITY);
show_args_node = derived_table->info.showstmt.show_args;
assert (show_args_node != NULL);
assert (show_args_node->node_type == PT_VALUE);
assert (show_args_node->type_enum == PT_TYPE_CHAR);
assert (show_args_node->info.value.data_value.str->length < DB_MAX_IDENTIFIER_LENGTH);
/* check table name */
table_name = (const char *) show_args_node->info.value.data_value.str->bytes;
cls = sm_find_class (table_name);
if (cls == NULL)
{
PT_ERRORmf (parser, show_args_node, MSGCAT_SET_ERROR, -(ER_LC_UNKNOWN_CLASSNAME), table_name);
return node;
}
AU_DISABLE (save);
error = au_fetch_class_force (cls, &sm_class, AU_FETCH_READ);
AU_ENABLE (save);
if (error == NO_ERROR)
{
if (sm_get_class_type (sm_class) != SM_CLASS_CT)
{
PT_ERRORm (parser, show_args_node, MSGCAT_SET_ERROR, -(ER_OBJ_NOT_A_CLASS));
return node;
}
}
/* check index name */
if (show_type == SHOWSTMT_INDEX_HEADER || show_type == SHOWSTMT_INDEX_CAPACITY)
{
show_args_node = show_args_node->next;
assert (show_args_node != NULL);
assert (show_args_node->node_type == PT_VALUE);
assert (show_args_node->type_enum == PT_TYPE_CHAR);
assert (show_args_node->info.value.data_value.str->length < DB_MAX_IDENTIFIER_LENGTH);
index_name = (const char *) show_args_node->info.value.data_value.str->bytes;
sm_all_constraints = sm_class_constraints (cls);
sm_constraint = classobj_find_constraint_by_name (sm_all_constraints, index_name);
if (sm_all_constraints == NULL || sm_constraint == NULL)
{
PT_ERRORmf (parser, show_args_node, MSGCAT_SET_ERROR, -(ER_SM_NO_INDEX), index_name);
return node;
}
}
/* get partition type and pass it by args */
error = sm_partitioned_class_type (cls, &partition_type, NULL, NULL);
if (error != NO_ERROR)
{
PT_ERRORc (parser, show_args_node, er_msg ());
return node;
}
partition_node = pt_make_integer_value (parser, partition_type);
if (partition_node == NULL)
{
PT_INTERNAL_ERROR (parser, "allocate new node");
return node;
}
parser_append_node (partition_node, show_args_node);
return node;
}
