PG_STAT_ACTIVITY_NG

PG_STAT_ACTIVITY_NG displays information about all queries in the logical cluster of the current user. (The current feature is a lab feature. Contact Huawei engineers for technical support before using it.)

**Table 1** PG_STAT_ACTIVITY_NG columns
Name	Type	Description
datid	oid	OID of the database that the user session connects to in the backend
datname	name	Name of the database that the user session connects to in the backend
pid	bigint	Process ID of the backend
sessionid	bigint	Session ID
global_sessionid	text	Global session ID
usesysid	oid	OID of the user logged in to the backend
usename	name	OID of the user logged in to the backend
application_name	text	Name of the application connected to the backend
client_addr	inet	IP address of the client connected to the backend. If this column is null, either the client is connected via a Unix socket on the server machine or this is an internal process such as autovacuum.
client_hostname	text	Host name of the connected client, as reported by a reverse DNS lookup of client_addr. This column will only be non-null for IP connections, and only when log_hostname is enabled.
client_port	integer	TCP port number that the client uses for communication with this backend (-1 if a Unix socket is used)
backend_start	timestamp with time zone	Time when this process was started, that is, when the client connected to the server
xact_start	timestamp with time zone	Time when current transaction was started (null if no transaction is active) If the current query is the first of its transaction, this column is equal to the query_start column.
query_start	timestamp with time zone	Time when the currently active query was started, or if state is not active, when the last query was started
state_change	timestamp with time zone	Time when the status was changed in the previous time
waiting	boolean	Whether the backend is currently waiting on a lock. If it is, its value is true. Otherwise, the value is false.
enqueue	text	Queuing status of a statement. The value must be one of the following: waiting in queue: The statement is in the queue. Empty: The statement is running.
state	text	Backend status. The value must be one of the following: active: The backend is executing a query. idle: The backend is waiting for a new client command. idle in transaction: The backend is in a transaction, but there is no statement being executed in the transaction. idle in transaction (aborted): The backend is in a transaction, but there are statements failed in the transaction. fastpath function call: The backend is executing a fast-path function. disabled: This state is reported if track_activities is disabled in this backend. NOTE: Common users can view only their own session status. The state information of other accounts is empty. For example, after user judy is connected to the database, the state information of user joe and the initial user omm in pg_stat_activity is empty. SELECT datname, usename, usesysid, state,pid FROM pg_stat_activity_ng; datname \| usename \| usesysid \| state \| pid ----------+---------+----------+--------+----------------- postgres \| omm \| 10 \| \| 139968752121616 postgres \| omm \| 10 \| \| 139968903116560 db_tpcds \| judy \| 16398 \| active \| 139968391403280 postgres \| omm \| 10 \| \| 139968643069712 postgres \| omm \| 10 \| \| 139968680818448 postgres \| joe \| 16390 \| \| 139968563377936 (6 rows)
resource_pool	name	Resource pool used by the user
query_id	bigint	ID of a query
query	text	Latest query at the backend. If state is active, this column shows the executing query. In all other states, it shows the last query that was executed.
node_group	text	Logical cluster of the user running the statement. (The current feature is a lab feature. Contact Huawei engineers for technical support before using it.)