Thd_ndb Class Reference

List of all members.

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

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Member Data Documentation

uint Thd_ndb::m_pushed_queries_defined

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

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.

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.

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.

uint Thd_ndb::m_sorted_scan_count

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

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

• ndb_thd_ndb.h
• ndb_global_schema_lock.cc
• ndb_thd_ndb.cc