MV_TASKS

node_id

An ID equal to id in the row of mv_nodes describing the node on which the task is running.

activity_type

The type of the task’s activity.

activity_name

An ID shared by all instances of the task’s activity. This ID is often human-readable, but does not include the query text for query tasks.

aggregator_activity_name

The aggregator_activity_name of the task’s activity.

database_name

The name of the database associated with the task’s activity, or NULL if none could be assigned.

partition_id

The unique ID of the database partition associated with the task’s activity, or NULL if none could be assigned.

raw_task_name

The full name associated with the task, or NULL if none could be assigned. In particular, this will hold the raw query text for query tasks. It differs from query_text in mv_nodes because it is fully parameterized. Note that this column is only available in mv_tasks.

EXTENDED STATISTICS

This view contains all extended statistics columns, including: cpu_time_ms, cpu_wait_time_ms, disk_logical_read_b, disk_logical_write_b, disk_physical_read_b, disk_physical_write_b, disk_time_ms, elapsed_time_ms, lock_row_time_ms, lock_time_ms, log_buffer_b, log_buffer_time_ms, log_flush_time_ms, memory_bs, memory_major_faults, network_logical_recv_b, network_logical_send_b, and network_time_ms.

BLOB_CACHE_MISS_B

A query sometimes cannot find its input data in blob cache, referred to as a cache miss. The blob cache will download the missing data from the unlimited storage. This new field tells us the number of bytes downloaded from the unlimited storage.

BLOB_CACHE_WAIT_TIME_MS

The time (milliseconds) that were spent on waiting for blob cache data. This is a sum of waiting time from all query execution threads, not to be compared with end-to-end running time.