Note
This view was renamed from GV$PLAN_CACHE_PLAN_STAT to GV$OB_PLAN_CACHE_PLAN_STAT starting with V4.0.0.
Purpose
This view displays the status of each cached object in the plan cache of all OBServer nodes for the current tenant.
Notice
This view caches not only SQL plan objects but also PL objects such as anonymous blocks, PL packages, and PL functions. Some fields are only valid for specific object types.
Columns
| Column | Type | Nullable | Description |
|---|---|---|---|
| TENANT_ID | NUMBER(38) | NO | The tenant ID. |
| SVR_IP | VARCHAR2(46) | NO | The IP address of the server. |
| SVR_PORT | NUMBER(38) | NO | The port number of the server. |
| PLAN_ID | NUMBER(38) | NO | The ID of the cached object. |
| SQL_ID | VARCHAR2(32) | NO | The SQL ID of the cached object. If the cached object is a PL object, this field is NULL. |
| TYPE | NUMBER(38) | NO | For SQL plan caching, this field indicates the type of the plan:
|
| IS_BIND_SENSITIVE | NUMBER(38) | NO | Indicates whether the plan requires the ACS to be opened. |
| IS_BIND_AWARE | NUMBER(38) | NO | Indicates whether the ACS is opened for the plan. |
| DB_ID | NUMBER(38) | NO | The ID of the database. |
| STATEMENT | CLOB | NO | For SQL plan caching, this field contains the parameterized SQL statement. For anonymous block caching, this field contains the parameterized anonymous block statement. This field is invalid for other types of cached objects. |
| QUERY_SQL | CLOB | NO | For SQL plan caching, this field contains the original SQL statement queried when the plan was first loaded. For anonymous block caching, this field contains the parameterized anonymous block statement. |
| SPECIAL_PARAMS | VARCHAR2(4096) | NO | The values of the parameters that cannot be parameterized. |
| PARAM_INFOS | CLOB | NO | The parameterization information. |
| SYS_VARS | VARCHAR2(4096) | NO | The values of the system variables that affect the cached object. |
| PLAN_HASH | NUMBER(38) | NO | The hash value of the SQL plan. |
| FIRST_LOAD_TIME | TIMESTAMP(6) WITH LOCAL TIME ZONE | NO | The time when the plan was first loaded. |
| SCHEMA_VERSION | NUMBER(38) | NO | The schema version number. |
| LAST_ACTIVE_TIME | TIMESTAMP(6) WITH LOCAL TIME ZONE | NO | The time when the plan was last executed. |
| AVG_EXE_USEC | NUMBER(38) | NO | The average execution time in microseconds. |
| SLOWEST_EXE_TIME | TIMESTAMP(6) WITH LOCAL TIME ZONE | NO | The timestamp of the slowest execution. |
| SLOWEST_EXE_USEC | NUMBER(38) | NO | The execution time of the slowest execution. |
| SLOW_COUNT | NUMBER(38) | NO | The number of times the SQL plan became a slow query. |
| HIT_COUNT | NUMBER(38) | NO | The number of times the plan was hit. |
| PLAN_SIZE | NUMBER(38) | NO | The size of the cached object in memory. |
| EXECUTIONS | NUMBER(38) | NO | The number of executions. |
| DISK_READS | NUMBER(38) | NO | The number of physical reads across all executions. |
| DIRECT_WRITES | NUMBER(38) | NO | The number of writes to the disk. |
| BUFFERS_GETS | NUMBER(38) | NO | The number of logical reads. |
| APPLICATION_WAIT_TIME | NUMBER(38) | NO | The total time for all application events during the execution of the request, in microseconds. |
| CONCURRENCY_WAIT_TIME | NUMBER(38) | NO | The total time for all concurrency events during the execution of the request, in microseconds. |
| USER_IO_WAIT_TIME | NUMBER(38) | NO | The total time for all user_io events during the execution of the request, in microseconds. |
| ROWS_PROCESSED | NUMBER(38) | NO | The number of rows processed by the query or the number of rows changed in the table. |
| ELAPSED_TIME | NUMBER(38) | NO | The total time from when the request was received to when the execution ended, in microseconds. |
| CPU_TIME | NUMBER(38) | NO | The total CPU time consumed by the execution, in microseconds. |
| LARGE_QUERYS | NUMBER(38) | NO | The number of queries identified as large queries. |
| DELAYED_LARGE_QUERYS | NUMBER(38) | NO | The number of large queries that were identified and queued. |
| DELAYED_PX_QUERYS | NUMBER(38) | NO | The number of parallel queries that were returned to the queue for retry. |
| OUTLINE_VERSION | NUMBER(38) | NO | The outline version number. |
| OUTLINE_ID | NUMBER(38) | NO | The ID of the outline. -1 indicates that the plan was not generated by using an outline. |
| OUTLINE_DATA | CLOB | NO | The outline information corresponding to the plan. |
| HINTS_INFO | CLOB | NO | The hint information of the SQL plan. |
| HINTS_ALL_WORKED | NUMBER(38) | NO | Indicates whether all hints in the SQL plan are effective. |
| ACS_SEL_INFO | CLOB | NO | The selection rate space corresponding to the current ACS plan. |
| TABLE_SCAN | NUMBER(38) | NO | Indicates whether the query is a primary key scan. |
| EVOLUTION | NUMBER(38) | NO | Indicates whether the execution plan is evolving. |
| EVO_EXECUTIONS | NUMBER(38) | NO | The number of evolutions. |
| EVO_CPU_TIME | NUMBER(38) | NO | The total CPU time consumed during the evolution, in microseconds. |
| TIMEOUT_COUNT | NUMBER(38) | NO | The number of timeouts. |
| PS_STMT_ID | NUMBER(38) | NO | The Prepare ID corresponding to the request: -1: The SQL statement does not use the PS protocol.-1: The SQL statement uses the PS protocol. The PS protocol returns a unique identifier for the statement. |
| SESSID | NUMBER(38) | NO | The session ID of the cache object. For V4.2.x:
|
| TEMP_TABLES | CLOB | NO | The name of the temporary table in the SQL plan. If no temporary table is included, this field is empty. |
| IS_USE_JIT | NUMBER(38) | NO | Indicates whether the SQL plan is enabled for expression compilation execution. |
| OBJECT_TYPE | CLOB | NO | The type of the cache object: |
| PL_SCHEMA_ID | NUMBER(38) | NO | For non-anonymous blocks, this field indicates the schema ID of the cache object. For anonymous blocks, this field is the same as ps_stmt_id. For SQL plans, this field is irrelevant. |
| IS_BATCHED_MULTI_STMT | NUMBER(38) | NO | Indicates whether the plan is optimized for Batched Multi Stmt. |
Sample query
Query the status of each cached object in the plan cache of all OBServer nodes for the current tenant.
obclient [SYS]> SELECT * FROM SYS.GV$OB_PLAN_CACHE_PLAN_STAT WHERE ROWNUM =1\G
The query result is as follows:
*************************** 1. row ***************************
TENANT_ID: 1004
SVR_IP: xx.xx.xx.xx
SVR_PORT: 28825
PLAN_ID: 386
SQL_ID: NULL
TYPE: 7
IS_BIND_SENSITIVE: 0
IS_BIND_AWARE: 0
DB_ID: 201001
STATEMENT: STANDARD
QUERY_SQL: NULL
SPECIAL_PARAMS: NULL
PARAM_INFOS: NULL
SYS_VARS: 45,45,2151677954,+08:00,2,4,1,0,0,3,1,0,1,10485760,1,0,YYYY-MM-DD HH24:MI:SS,YYYY-MM-DD HH24:MI:SS.FF,YYYY-MM-DD HH24:MI:SS.FF TZR TZD,BINARY,BINARY,AL32UTF8,AL16UTF16,BYTE,FALSE,1,100,64,200,0,13,NULL,1,1,1,1,1,0,0,0,1000,BLOOM_FILTER,RANGE,IN,1,17180000512,17180000512,1,45,0,
PLAN_HASH: 0
FIRST_LOAD_TIME: 19-MAR-25 02.17.15.500723 PM
SCHEMA_VERSION: 1742363530459848
LAST_ACTIVE_TIME: 18-APR-25 04.22.15.374071 PM
AVG_EXE_USEC: 0
SLOWEST_EXE_TIME: NULL
SLOWEST_EXE_USEC: 0
SLOW_COUNT: 0
HIT_COUNT: 1733
PLAN_SIZE: 15872
EXECUTIONS: 0
DISK_READS: 0
DIRECT_WRITES: 0
BUFFERS_GETS: 0
APPLICATION_WATI_TIME: 0
CONCURRENCY_WAIT_TIME: 0
USER_IO_WAIT_TIME: 0
ROWS_PROCESSED: 0
ELAPSED_TIME: 0
CPU_TIME: 0
LARGE_QUERYS: 0
DELAYED_LARGE_QUERYS: 0
DELAYED_PX_QUERYS: 0
OUTLINE_VERSION: 0
OUTLINE_ID: 0
OUTLINE_DATA: NULL
HINTS_INFO: NULL
HINTS_ALL_WORKED: 0
ACS_SEL_INFO: NULL
TABLE_SCAN: 0
EVOLUTION: 0
EVO_EXECUTIONS: 0
EVO_CPU_TIME: 0
TIMEOUT_COUNT: 0
PS_STMT_ID: -1
SESSID: 18446744073709551615
TEMP_TABLES: NULL
IS_USE_JIT: 0
OBJECT_TYPE: PACKAGE
PL_SCHEMA_ID: 310001
IS_BATCHED_MULTI_STMT: 0