Note
This view was introduced in OceanBase Database V1.4.
Purpose
The V$SQL_PLAN_MONITOR view displays the operation-level statistics of slow queries on the current OBServer node in the current tenant. Each operation corresponds to one row in this view.
Columns
Column |
Type |
Nullable? |
Description |
|---|---|---|---|
| CON_ID | NUMBER | NO | The ID of the tenant. |
| REQUEST_ID | NUMBER(38) | NO | The ID of the request. |
| KEY | NUMBER | NO | The foreign key. It can be used for joining virtual tables related to SQL_MONITOR. |
| STATUS | VARCHAR2(19) | NO | The status of the operator. Valid values: EXECUTING: The operator is being executed.DONE(ERROR): An error occurred during the execution of the operator.DONE(FIRST N ROWS): The execution succeeded.DONE(ALL ROWS): The execution succeeded.DONE: The execution was interrupted. |
| SVR_IP | VARCHAR2(46) | NO | The IP address of the OBServer node where the operator is executed. |
| SVR_PORT | NUMBER(38) | NO | The port number of the OBServer node where the operator is executed. |
| TRACE_ID | VARCHAR2(64) | NO | The trace ID of the operator. |
| FIRST_REFRESH_TIME | TIMESTAMP(6) | NO | The time when the monitoring of the operator started. |
| LAST_REFRESH_TIME | TIMESTAMP(6) | NO | The time when the monitoring of the operator ended. |
| FIRST_CHANGE_TIME | TIMESTAMP(6) | NO | The time when the operator output the first row of data. |
| LAST_CHANGE_TIME | TIMESTAMP(6) | NO | The time when the operator output the last row of data. |
| REFRESH_COUNT | NUMBER | NO | The number of times the statistics data was refreshed. |
| SID | NUMBER | NO | The ID of the session. |
| PROCESS_NAME | VARCHAR2(10) | NO | The ID of the thread that executed the operator. |
| SQL_ID | VARCHAR2(13) | NO | The ID of the SQL statement. |
| SQL_EXEC_START | TIMESTAMP(6) | NO | The time when the execution of the SQL statement started. |
| SQL_EXEC_ID | NUMBER | NO | The ID of the SQL statement execution. |
| SQL_PLAN_HASH_VALUE | NUMBER | NO | The hash value of the SQL plan. |
| SQL_CHILD_ADDRESS | RAW(8) | NO | The default value of this column is NULL. |
| PLAN_PARENT_ID | NUMBER | NO | The ID of the parent operator of the plan. |
| PLAN_LINE_ID | NUMBER | NO | The default value of this column is NULL. |
| PLAN_OPERATION | VARCHAR2(30) | NO | The name of the operator. |
| PLAN_OPTIONS | VARCHAR2(30) | NO | The default value of this column is NULL. |
| PLAN_OBJECT_OWNER | VARCHAR2(128) | NO | The default value of this column is NULL. |
| PLAN_OBJECT_NAME | VARCHAR2(128) | NO | The default value of this column is NULL. |
| PLAN_OBJECT_TYPE | VARCHAR2(80) | NO | The default value of this column is NULL. |
| PLAN_DEPTH | NUMBER | NO | The depth of the operator in the plan tree. |
| PLAN_POSITION | NUMBER | NO | The position of the operator among the operators that share the same parent operator. |
| PLAN_COST | NUMBER | NO | The cost of executing the operator. This value is calculated by the optimizer. |
| PLAN_CARDINALITY | NUMBER | NO | The number of rows that will be returned by the execution of the operator. This value is calculated by the optimizer. |
| PLAN_BYTES | NUMBER | NO | The number of bytes that will be returned by the execution of the operator. This value is calculated by the optimizer. |
| PLAN_TIME | NUMBER | NO | The estimated amount of time that the execution of the operator will take. This value is calculated by the optimizer. |
| PLAN_PARTITION_START | VARCHAR2(256) | NO | The default value of this column is NULL. |
| PLAN_PARTITION_STOP | VARCHAR2(256) | NO | The default value of this column is NULL. |
| PLAN_CPU_COST | NUMBER | NO | The estimated CPU cost of executing the operator. This value is calculated by the optimizer. |
| PLAN_IO_COST | NUMBER | NO | The estimated I/O cost of executing the operator. This value is calculated by the optimizer. |
| PLAN_TEMP_SPACE | NUMBER | NO | The space that the operator is estimated to consume. This value is calculated by the optimizer. |
| STARTS | NUMBER | NO | The number of times the operator has been rescanned. |
| OUTPUT_ROWS | NUMBER | NO | The total number of rows returned from all the executions of the operator. |
| IO_INTERCONNECT_BYTES | NUMBER | NO | The number of bytes exchanged between the operator and the storage layer. |
| PHYSICAL_READ_REQUESTS | NUMBER | NO | The total number of I/O read requests sent by the operator. |
| PHYSICAL_READ_BYTES | NUMBER | NO | The total number of bytes that the operator requested to read. |
| PHYSICAL_WRITE_REQUESTS | NUMBER | NO | The total number of I/O write requests sent by the operator. |
| PHYSICAL_WRITE_BYTES | NUMBER | NO | The total number of bytes that the operator requested to write. |
| WORKAREA_MEM | NUMBER | NO | The size of the workarea that the operator occupies in the memory. |
| WORKAREA_MAX_MEM | NUMBER | NO | The maximum size of the workarea that the operator can occupy. |
| WORKAREA_TEMPSEG | NUMBER | NO | The dump space that the operator occupies on the disk. |
| WORKAREA_MAX_TEMPSEG | NUMBER | NO | The maximum size of the dump space that the operator can occupy on the disk. |
| OTHERSTAT_GROUP_ID | NUMBER | NO | The default value of this column is NULL. |
| OTHERSTAT_1_ID | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_1_TYPE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_1_VALUE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_2_ID | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_2_TYPE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_2_VALUE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_3_ID | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_3_TYPE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_3_VALUE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_4_ID | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_4_TYPE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_4_VALUE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_5_ID | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_5_TYPE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_5_VALUE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_6_ID | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_6_TYPE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_6_VALUE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_7_ID | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_7_TYPE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_7_VALUE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_8_ID | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_8_TYPE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_8_VALUE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_9_ID | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_9_TYPE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_9_VALUE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_10_ID | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_10_TYPE | NUMBER | NO | Reserved for future use. |
| OTHERSTAT_10_VALUE | NUMBER | NO | Reserved for future use. |
| OTHER_XML | VARCHAR2(1) | NO | Other structured data that needs to be provided for external access but cannot be written to the existing columns. The data in this column is parsed by external tools. |
| PLAN_OPERATION_INACTIVE | NUMBER | NO | The default value of this column is NULL. |
| OUTPUT_BATCHES | NUMBER(38) | NO | The number of times that the operator calls the get_next_batch operation in vectorized mode. |
| SKIPPED_ROWS_COUNT | NUMBER(38) | NO | The total number of rows that do not need to be calculated during operator calculation in vectorized mode. It is the total number of rows skipped. |
| DB_TIME | NUMBER(38) | NO | The amount of CPU time consumed by the operator. |
| USER_IO_WAIT_TIME | NUMBER(38) | NO | The total amount of wait time of User I/O wait events. |
| OTHER_WAIT_TIME | NULL | NO | The total amount of time spent on other wait events. |
Sample query
obclient [SYS]> SELECT * FROM SYS.V$SQL_PLAN_MONITOR WHERE ROWNUM =1\G
The query result is as follows:
*************************** 1. row ***************************
CON_ID: 1004
REQUEST_ID: 0
KEY: NULL
STATUS: NULL
SVR_IP: xx.xx.xx.xx
SVR_PORT: 2882
TRACE_ID: YBXXXXXXXXXX-000XXXXXXXXXX-0-0
FIRST_REFRESH_TIME: 11-JUN-24 03.43.35.827752 PM
LAST_REFRESH_TIME: 11-JUN-24 03.43.35.828807 PM
FIRST_CHANGE_TIME: 11-JUN-24 03.43.35.827752 PM
LAST_CHANGE_TIME: 11-JUN-24 03.43.35.827752 PM
REFRESH_COUNT: NULL
SID: NULL
PROCESS_NAME: 16838
SQL_ID: NULL
SQL_EXEC_START: NULL
SQL_EXEC_ID: NULL
SQL_PLAN_HASH_VALUE: NULL
SQL_CHILD_ADDRESS: NULL
PLAN_PARENT_ID: NULL
PLAN_LINE_ID: 0
PLAN_OPERATION: PHY_TABLE_SCAN
PLAN_OPTIONS: NULL
PLAN_OBJECT_OWNER: NULL
PLAN_OBJECT_NAME: NULL
PLAN_OBJECT_TYPE: NULL
PLAN_DEPTH: 0
PLAN_POSITION: NULL
PLAN_COST: NULL
PLAN_CARDINALITY: NULL
PLAN_BYTES: NULL
PLAN_TIME: NULL
PLAN_PARTITION_START: NULL
PLAN_PARTITION_STOP: NULL
PLAN_CPU_COST: NULL
PLAN_IO_COST: NULL
PLAN_TEMP_SPACE: NULL
STARTS: 0
OUTPUT_ROWS: 1
IO_INTERCONNECT_BYTES: NULL
PHYSICAL_READ_REQUESTS: NULL
PHYSICAL_READ_BYTES: NULL
PHYSICAL_WRITE_REQUESTS: NULL
PHYSICAL_WRITE_BYTES: NULL
WORKAREA_MEM: NULL
WORKAREA_MAX_MEM: 0
WORKAREA_TEMPSEG: NULL
WORKAREA_MAX_TEMPSEG: 0
OTHERSTAT_GROUP_ID: NULL
OTHERSTAT_1_ID: 33
OTHERSTAT_1_TYPE: NULL
OTHERSTAT_1_VALUE: 0
OTHERSTAT_2_ID: 34
OTHERSTAT_2_TYPE: NULL
OTHERSTAT_2_VALUE: 11911
OTHERSTAT_3_ID: 35
OTHERSTAT_3_TYPE: NULL
OTHERSTAT_3_VALUE: 21
OTHERSTAT_4_ID: 36
OTHERSTAT_4_TYPE: NULL
OTHERSTAT_4_VALUE: 2
OTHERSTAT_5_ID: 0
OTHERSTAT_5_TYPE: NULL
OTHERSTAT_5_VALUE: 0
OTHERSTAT_6_ID: 0
OTHERSTAT_6_TYPE: NULL
OTHERSTAT_6_VALUE: 0
OTHERSTAT_7_ID: 0
OTHERSTAT_7_TYPE: NULL
OTHERSTAT_7_VALUE: 0
OTHERSTAT_8_ID: 0
OTHERSTAT_8_TYPE: NULL
OTHERSTAT_8_VALUE: 0
OTHERSTAT_9_ID: 0
OTHERSTAT_9_TYPE: NULL
OTHERSTAT_9_VALUE: 0
OTHERSTAT_10_ID: 0
OTHERSTAT_10_TYPE: NULL
OTHERSTAT_10_VALUE: 0
OTHER_XML: NULL
PLAN_OPERATION_INACTIVE: NULL
OUTPUT_BATCHES: 0
SKIPPED_ROWS_COUNT: 0
DB_TIME: 78
USER_IO_WAIT_TIME: 0
OTHER_WAIT_TIME: NULL
1 row in set