PG_COMM_SEND_STREAM

UNKNOWN: The logical connection status is unknown.
READY: The logical connection is ready.
RUN: The logical connection sends packets normally.
HOLD: The logical connection is waiting to send packets.
CLOSED: The logical connection is closed.
TO_CLOSED: The logical connection will be closed.

PG_COMM_SEND_STREAM displays the sending stream status of all the communication libraries for a single DN.

**Table 1** PG_COMM_SEND_STREAM columns
Name	Type	Description
node_name	text	Node name.
local_tid	bigint	ID of the thread using this stream.
remote_name	text	Name of the peer node.
remote_tid	bigint	Peer thread ID.
idx	integer	Peer DN ID in the local DN.
sid	integer	Stream ID in the physical connection.
tcp_sock	integer	TCP socket used in the stream.
state	text	Status of the stream. UNKNOWN: The logical connection status is unknown. READY: The logical connection is ready. RUN: The logical connection sends packets normally. HOLD: The logical connection is waiting to send packets. CLOSED: The logical connection is closed. TO_CLOSED: The logical connection will be closed.
query_id	bigint	debug_query_id corresponding to the stream.
pn_id	integer	plan_node_id of the query executed by the stream.
send_smp	integer	smpid of the sender of the query executed by the stream.
recv_smp	integer	smpid of the receiver of the query executed by the stream.
send_bytes	bigint	Total data volume sent by the stream, in bytes.
time	bigint	Current life cycle of a stream. The unit is ms.
speed	bigint	Average sending rate of the stream, in byte/s.
quota	bigint	Current communication quota of the stream, in bytes.
wait_quota	bigint	Extra time generated when the stream waits the quota value, in ms.