PGXC_NODE

oid

oid

Row identifier (hidden attribute, which must be specified)

node_name

name

Node name

node_type

"char"

node_port

integer

Port ID of the node

node_host

name

Host name or IP address of a node. (If a virtual IP address is configured, its value is a virtual IP address.)

node_port1

integer

Port number of a replication node

node_host1

name

Host name or IP address of a replication node. (If a virtual IP address is configured, its value is a virtual IP address.)

hostis_primary

boolean

Whether a switchover occurs between the primary and standby servers on the current node

• t (true): yes
• f (false): no

nodeis_primary

boolean

Whether the current node is preferred to execute non-query operations in the replication table

• t (true): yes
• f (false): no

nodeis_preferred

boolean

Whether the current node is preferred to execute queries in the replication table

• t (true): yes
• f (false): no

node_id

integer

Node identifier. The value is obtain by calculating the value of node_name using the hash function.

sctp_port

integer

Port used by the TCP proxy communication library or SCTP communication library (Due to specification changes, the current version no longer supports the current feature. Do not use this feature.) of the primary node to listen on the data channel

control_port

integer

Port used by the TCP proxy communications library of the primary node to listen on the control channel

sctp_port1

integer

Port used by the TCP proxy communication library or SCTP communication library (Due to specification changes, the current version no longer supports the current feature. Do not use this feature.) of the standby node to listen on the data channel

control_port1

integer

Port used by the TCP proxy communications library of the standby node to listen on the control channel

nodeis_central

boolean

Whether the current node is a central control node. It is used only for CNs and is invalid for DNs.

• t (true): yes
• f (false): no

nodeis_active

boolean

Indicates whether the current node is normal. It is used to mark whether the CN is removed and is invalid for DNs.

• t (true): yes
• f (false): no