Collaboration diagram for Thd_ndb:

Public Member Functions
void	init_open_tables ()
bool	has_required_global_schema_lock (const char *func)
bool	valid_ndb (void)
bool	recycle_ndb (THD *thd)

Static Public Member Functions
static Thd_ndb *	seize (THD *)
static void	release (Thd_ndb *thd_ndb)

Public Attributes
class Ndb_cluster_connection *	connection
class Ndb *	ndb
class ha_ndbcluster *	m_handler
ulong	count
uint	lock_count
uint	start_stmt_count
uint	save_point_count
class NdbTransaction *	trans
bool	m_error
bool	m_slow_path
bool	m_force_send
uint32	options
uint32	trans_options
List< NDB_SHARE >	changed_tables
HASH	open_tables
MEM_ROOT	m_batch_mem_root
uint	m_unsent_bytes
uint	m_batch_size
uint	m_execute_count
uint	m_scan_count
uint	m_pruned_scan_count
uint	m_sorted_scan_count
uint	m_pushed_queries_defined
uint	m_pushed_queries_dropped
uint	m_pushed_queries_executed
uint	m_pushed_reads
uint	m_transaction_no_hint_count [MAX_NDB_NODES]
uint	m_transaction_hint_count [MAX_NDB_NODES]
NdbTransaction *	global_schema_lock_trans
uint	global_schema_lock_count
uint	global_schema_lock_error
uint	schema_locks_count
unsigned	m_connect_count

Detailed Description

Definition at line 58 of file ndb_thd_ndb.h.

Member Data Documentation

uint Thd_ndb::m_pushed_queries_defined

This is the number of NdbQueryDef objects that the handler has created.

Definition at line 107 of file ndb_thd_ndb.h.

uint Thd_ndb::m_pushed_queries_dropped

This is the number of cases where the handler decided not to use an NdbQuery object that it previously created for executing a particular instance of a query fragment. This may happen if for examle the optimizer decides to use another type of access operation than originally assumed.

Definition at line 114 of file ndb_thd_ndb.h.

uint Thd_ndb::m_pushed_queries_executed

This is the number of times that the handler instantiated an NdbQuery object from a NdbQueryDef object and used the former for executing an instance of a query fragment.

Definition at line 120 of file ndb_thd_ndb.h.

uint Thd_ndb::m_pushed_reads

This is the number of lookup operations (via unique index or primary key) that were eliminated by pushing linked operations (NdbQuery) to the data nodes.

Definition at line 126 of file ndb_thd_ndb.h.

uint Thd_ndb::m_sorted_scan_count

This is the number of sorted scans (via ordered indexes).

Definition at line 104 of file ndb_thd_ndb.h.

The documentation for this class was generated from the following files:

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Member Data Documentation