Note
- For V4.3.x, this view was introduced in V4.3.5.
- For V4.2.1, this view was introduced in V4.2.1 BP7. For V4.2.x other than V4.2.1, this view was introduced in V4.2.5.
Purpose
The GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM view is used to query the histogram information of query execution times on all nodes of the current tenant.
Columns
| Column | Type | Allowable Values | Description |
|---|---|---|---|
| SVR_IP | varchar(46) | NO | IP address of the node |
| SVR_PORT | bigint(20) | NO | Port number of the node |
| TENANT_ID | bigint(20) | NO | ID of the tenant |
| SQL_TYPE | varchar(128) | NO | Statement type of the query:
|
| RESPONSE_TIME | decimal(24,6) | NO | Response time in seconds |
| COUNT | bigint(20) | NO | Number of queries in the time interval |
| TOTAL | decimal(24,6) | NO | Total time in the time interval in seconds |
Sample query
The following example queries the histogram information of query execution times on all nodes of the current tenant.
obclient [oceanbase]> SELECT * FROM oceanbase.GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM LIMIT 2\G
The sample result is as follows:
*************************** 1. row ***************************
SVR_IP: xx.xx.xx.xx
SVR_PORT: 2882
TENANT_ID: 1002
SQL_TYPE: SELECT
RESPONSE_TIME: 0.000001
COUNT: 0
TOTAL: 0.000000
*************************** 2. row ***************************
SVR_IP: xx.xx.xx.xx
SVR_PORT: 2882
TENANT_ID: 1002
SQL_TYPE: SELECT
RESPONSE_TIME: 0.000010
COUNT: 0
TOTAL: 0.000000
2 rows in set
The following example queries the histogram information of TABLEAPI SELECT queries on all nodes of the current tenant.
obclient [oceanbase]> SELECT * FROM oceanbase.GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM WHERE SQL_TYPE = "TABLEAPI SELECT" LIMIT 2\G
The sample result is as follows:
*************************** 1. row ***************************
SVR_IP: 172.xx.xxx.225
SVR_PORT: 2882
TENANT_ID: 1002
SQL_TYPE: TABLEAPI SELECT
RESPONSE_TIME: 0.000001
COUNT: 0
TOTAL: 0.000000
*************************** 2. row ***************************
SVR_IP: 172.xx.xxx.225
SVR_PORT: 2882
TENANT_ID: 1002
SQL_TYPE: TABLEAPI SELECT
RESPONSE_TIME: 0.000010
COUNT: 0
TOTAL: 0.000000
2 rows in set
