Help Center> GaussDB> Distributed_2.x> Schemas> DBE_PERF Schema> Query> GLOBAL_STATEMENT_COMPLEX_HISTORY

Updated on 2023-10-23 GMT+08:00

View PDF

GLOBAL_STATEMENT_COMPLEX_HISTORY

GLOBAL_STATEMENT_COMPLEX_HISTORY_TABLE displays load management information about completed jobs executed on each node. (The current feature is a lab feature. Contact Huawei engineers for technical support before using it.)

**Table 1** GLOBAL_STATEMENT_COMPLEX_HISTORY columns
Name	Type	Description
datid	oid	OID of the database that this 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 process, 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 starts to be executed
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 (unit: MB)
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 DNs
spill_info	text	Statement spill information on all DNs. None: No data is spilled to disks. 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 DNs
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. It is counted by ones in a column-store table and by ten thousands in a row-store table.
max_peak_iops	integer	Maximum peak IOPS of the statement across all DNs. It is counted by ones in a column-store table and by ten thousands in a row-store table.
average_peak_iops	integer	Average peak IOPS of the statement across all DNs. It is counted by ones in a column-store table and by ten thousands in a row-store table.
iops_skew_percent	integer	I/O skew of the statement among 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
node_group	text	Logical cluster of the user running the statement. (The current feature is a lab feature. Contact Huawei engineers for technical support before using it.)
cpu_top1_node_name	text	Name of the node with the 1st CPU usage
cpu_top2_node_name	text	Name of the node with the 2nd CPU usage
cpu_top3_node_name	text	Name of the node with the 3rd CPU usage
cpu_top4_node_name	text	Name of the node with the 4th CPU usage
cpu_top5_node_name	text	Name of the node with the 5th CPU usage
mem_top1_node_name	text	Name of the node with the 1st memory usage
mem_top2_node_name	text	Name of the node with the 2nd memory usage
mem_top3_node_name	text	Name of the node with the 3rd memory usage
mem_top4_node_name	text	Name of the node with the 4th memory usage
mem_top5_node_name	text	Name of the node with the 5th 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