Help Center/ GaussDB/ Developer Guide(Distributed_V2.0-8.x)/ Schemas/ DBE_PERF Schema/ Query/ GLOBAL_STATEMENT_COMPLEX_HISTORY
Updated on 2025-08-19 GMT+08:00
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GLOBAL_STATEMENT_COMPLEX_HISTORY

Displays workload management information about completed jobs executed on each node, as described in Table 1.

Table 1 GLOBAL_STATEMENT_COMPLEX_HISTORY columns

Name

Type

Description

datid

oid

OID of the database that the backend is connected to.

dbname

text

Name of the database that the backend is connected to.

schemaname

text

Schema name.

nodename

text

Name of the CN where the statement is executed.

username

text

Username used for connecting 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, it indicates either the client is connected via a Unix socket on the server or this is an internal thread, 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 be non-null only 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).

query_band

text

Job type, which is specified by the GUC parameter query_band. The default value is a null string.

block_time

bigint

Duration that the statement is blocked before being executed, including the statement parsing and optimization duration (unit: ms).

start_time

timestamp with time zone

Time when the statement execution starts.

finish_time

timestamp with time zone

Time when the statement execution ends.

duration

bigint

Execution time of the statement (unit: ms).

estimate_total_time

bigint

Estimated execution time of the statement (unit: ms).

status

text

Final statement execution status. The value can be finished (normal) or aborted (abnormal).

abort_info

text

Exception information displayed if the final statement execution status is aborted.

resource_pool

text

Resource pool used by the user.

control_group

text

Cgroup used by the statement.

estimate_memory

integer

Estimated memory used by the statement.

min_peak_memory

integer

Minimum peak memory of the statement across all DNs (unit: MB).

max_peak_memory

integer

Maximum peak memory of the statement across all DNs (unit: MB).

average_peak_memory

integer

Average memory usage during statement execution (unit: MB).

memory_skew_percent

integer

Memory usage skew of the statement among each DN.

spill_info

text
Statement spill information on all DNs.
  • None: No data is spilled to disks on all DNs.
  • All: Data is spilled to disks on all DNs.
  • [a:b]: The statement has been spilled to disks on a of b DNs.

min_spill_size

integer

Minimum spilled data among all DNs when a spill occurs (unit: MB; default value: 0).

max_spill_size

integer

Maximum spilled data among all DNs when a spill occurs (unit: MB; default value: 0).

average_spill_size

integer

Average spilled data among all DNs when a spill occurs (unit: MB; default value: 0).

spill_skew_percent

integer

DN spill skew when a spill occurs.

min_dn_time

bigint

Minimum execution time of the statement across all DNs (unit: ms).

max_dn_time

bigint

Maximum execution time of the statement across all DNs (unit: ms).

average_dn_time

bigint

Average execution time of the statement across all DNs (unit: ms).

dntime_skew_percent

integer

Execution time skew of the statement among each DN.

min_cpu_time

bigint

Minimum CPU time of the statement across all DNs (unit: ms).

max_cpu_time

bigint

Maximum CPU time of the statement across all DNs (unit: ms).

total_cpu_time

bigint

Total CPU time of the statement across all DNs (unit: ms).

cpu_skew_percent

integer

CPU time skew of the statement among DNs.

min_peak_iops

integer

Minimum peak IOPS of the statement across all DNs (unit: 10 thousands per second).

max_peak_iops

integer

Maximum peak IOPS of the statement across all DNs (unit: 10 thousands per second).

average_peak_iops

integer

Average peak IOPS of the statement across all DNs (unit: 10 thousands per second).

iops_skew_percent

integer

I/O skew across DNs.

warning

text
Warning. The following warnings and warnings related to Optimizing SQL Self-Diagnosis are displayed:
  • Spill file size large than 256MB
  • Broadcast size large than 100MB
  • Early spill
  • Spill times is greater than 3
  • Spill on memory adaptive
  • Hash table conflict

queryid

bigint

Internal query ID used for statement execution.

query

text

Statement executed.

query_plan

text

Execution plan of the statement.

cpu_top1_node_name

text

Name of the node with the highest CPU usage.

cpu_top2_node_name

text

Name of the node with the second highest CPU usage.

cpu_top3_node_name

text

Name of the node with the third highest CPU usage.

cpu_top4_node_name

text

Name of the node with the fourth highest CPU usage.

cpu_top5_node_name

text

Name of the node with the fifth highest CPU usage.

mem_top1_node_name

text

Name of the node with the highest memory usage.

mem_top2_node_name

text

Name of the node with the second highest memory usage.

mem_top3_node_name

text

Name of the node with the third highest memory usage.

mem_top4_node_name

text

Name of the node with the fourth highest memory usage.

mem_top5_node_name

text

Name of the node with the fifth highest memory usage.

cpu_top1_value

bigint

1st CPU usage.

cpu_top2_value

bigint

2nd CPU usage.

cpu_top3_value

bigint

3rd CPU usage.

cpu_top4_value

bigint

4th CPU usage.

cpu_top5_value

bigint

5th CPU usage.

mem_top1_value

bigint

1st memory usage.

mem_top2_value

bigint

2nd memory usage.

mem_top3_value

bigint

3rd memory usage.

mem_top4_value

bigint

4th memory usage.

mem_top5_value

bigint

5th memory usage.

top_mem_dn

text

Top N memory usage.

top_cpu_dn

text

Top N CPU usage.

node_group

text

Node group of the user to which the statement belongs.
Parent topic: Query