GS_WLM_EC_OPERATOR_INFO

GS_WLM_EC_OPERATOR_INFO records operator information after an Extension Connector job ends. If the GUC parameter enable_resource_record is set to on, the system imports records from GS_WLM_EC_OPERATOR_HISTORY to this system catalog every 3 minutes. This operation occupies storage space and affects performance. Only users with the sysadmin permission can query this system catalog. The current feature is a lab feature. Contact Huawei technical support before using it.

**Table 1** GS_WLM_EC_OPERATOR_INFO columns
Name	Type	Description
queryid	bigint	Internal query ID used for Extension Connector statement execution
plan_node_id	integer	Plan node ID of the execution plan of an Extension Connector operator
start_time	timestamp with time zone	Time when the Extension Connector operator starts to process the first data record
duration	bigint	Total execution time of the Extension Connector operator, in ms
tuple_processed	bigint	Number of elements returned by the Extension Connector operator
min_peak_memory	integer	Minimum peak memory used by the Extension Connector operator on all DNs, in MB
max_peak_memory	integer	Maximum peak memory used by the Extension Connector operator on all DNs, in MB
average_peak_memory	integer	Average peak memory used by the Extension Connector operator on all DNs, in MB
ec_status	text	Status of the Extension Connector job
ec_execute_datanode	text	Name of the DN executing the Extension Connector job
ec_dsn	text	DSN used by the Extension Connector job
ec_username	text	Username used by the Extension Connector job to access the remote cluster. This parameter is null if the remote cluster type is SPARK.
ec_query	text	Statement sent by the Extension Connector job to a remote cluster
ec_libodbc_type	text	Type of the unixODBC driver used by the Extension Connector job