GS_ASP

GS_ASP displays the persistent ACTIVE SESSION PROFILE samples. This table can only be queried in the system database, and there is no data in the user database.

Table 1 GS_ASP columns

Name	Type	Description
sampleid	bigint	Sample ID
sample_time	timestamp with time zone	Sampling time
need_flush_sample	boolean	Specifies whether the sample needs to be flushed to disks. - t (true): yes - f (false): no
databaseid	oid	Database ID
thread_id	bigint	Thread ID
sessionid	bigint	Session ID
start_time	timestamp with time zone	Start time of a session
event	text	Event name
lwtid	integer	Lightweight thread ID of the current thread
psessionid	bigint	Parent thread of the streaming thread
tlevel	integer	Level of the streaming thread, which corresponds to the level (id) of the execution plan
smpid	integer	Concurrent thread ID in SMP execution mode
userid	oid	ID of a session user
application_name	text	Name of an application
client_addr	inet	IP address of a client
client_hostname	text	Name of a client
client_port	integer	TCP port number used by a client to communicate with the backend
query_id	bigint	Debug query ID
unique_query_id	bigint	Unique query ID
user_id	oid	User ID in the key of the unique query
cn_id	integer	ID of the node that delivers the unique SQL statement. cn_id is in the key of the unique query.
unique_query	text	Standardized Unique SQL text string
locktag	text	Information of a lock that the session waits for, which can be parsed using locktag_decode.
lockmode	text	Mode of a lock that the session waits for - LW_EXCLUSIVE: exclusive lock - LW_SHARED: shared lock - LW_WAIT_UNTIL_FREE: waits for the LW_EXCLUSIVE to be available
block_sessionid	bigint	Blocks a session from obtaining the session ID of a lock if the session is waiting for the lock.
wait_status	text	Provides more details about an event column.
global_sessionid	text	Global session ID
plan_node_id	int	The operator ID of the execution plan tree