Note
This view was renamed from GV$PLAN_CACHE_PLAN_STAT to GV$OB_PLAN_CACHE_PLAN_STAT starting with V4.0.0.
Purpose
The GV$OB_PLAN_CACHE_PLAN_STAT view displays the status of each cached object in the plan cache of the current tenant on all OBServer nodes.
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 ID of the tenant. |
| 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 needs to be opened with ACS. |
| IS_BIND_AWARE | NUMBER(38) | NO | Indicates whether the plan has been opened with ACS. |
| 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 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 parameters that cannot be parameterized. |
| PARAM_INFOS | CLOB | NO | The parameterization information. |
| SYS_VARS | VARCHAR2(4096) | NO | The values of 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 has become a slow query. |
| HIT_COUNT | NUMBER(38) | NO | The number of times the plan has been hit. |
| PLAN_SIZE | NUMBER(38) | NO | The size of the memory occupied by the cached object. |
| EXECUTIONS | NUMBER(38) | NO | The number of executions. |
| DISK_READS | NUMBER(38) | NO | The total number of physical reads across all executions. |
| DIRECT_WRITES | NUMBER(38) | NO | The total number of disk writes. |
| BUFFERS_GETS | NUMBER(38) | NO | The total number of logical reads. |
| APPLICATION_WAIT_TIME | NUMBER(38) | NO | The total time of all Application events during the execution of the request, in microseconds. |
| CONCURRENCY_WAIT_TIME | NUMBER(38) | NO | The total time of all Concurrency events during the execution of the request, in microseconds. |
| USER_IO_WAIT_TIME | NUMBER(38) | NO | The total time of all user_io events during the execution of the request, in microseconds. |
| ROWS_PROCESSED | NUMBER(38) | NO | The total number of rows processed by the query or modified 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 times the query was identified as a large query. |
| DELAYED_LARGE_QUERYS | NUMBER(38) | NO | The number of times the query was identified as a large query and was added to the large query queue. |
| DELAYED_PX_QUERYS | NUMBER(38) | NO | The number of times a parallel query was 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: Indicates that the SQL statement does not use the PS protocol.-1: Indicates that the SQL statement uses the PS protocol. This value uniquely identifies the statement. |
| SESSID | NUMBER(38) | NO | The session ID where the cached object is stored. For V4.3.x:
|
| TEMP_TABLES | CLOB | NO | The name of the temporary table in the SQL plan. If there are no temporary tables, this field is empty. |
| IS_USE_JIT | NUMBER(38) | NO | Indicates whether the SQL plan enables expression compilation execution. |
| OBJECT_TYPE | CLOB | NO | The type of the cached object: |
| PL_SCHEMA_ID | NUMBER(38) | NO | For non-anonymous blocks, this field is the schema ID of the cached object. For anonymous blocks, this field is the same as ps_stmt_id. For SQL plans, this field is meaningless. |
| IS_BATCHED_MULTI_STMT | NUMBER(38) | NO | Indicates whether the plan is optimized for batched multi-statement execution. |
| RULE_NAME | VARCHAR2(256) | NO | The name of the rule. |
| PLAN_STATUS | VARCHAR2(8) | NO | Indicates whether the plan is ACTIVE or INACTIVE. |
| ADAPTIVE_FEEDBACK_TIMES | NUMBER(38) | NO | The number of consecutive positive or negative feedbacks. |
| FIRST_GET_PLAN_TIME | NUMBER(38) | NO | The time when the query was hard-parsed. |
| FIRST_EXE_USEC | NUMBER(38) | NO | The time when the query was first executed. |
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: xxx.xx.xxx.xxx
SVR_PORT: 2882
PLAN_ID: 8
SQL_ID: D9EB4937E65F94AA38F6B0FE72B06D13
TYPE: 1
IS_BIND_SENSITIVE: 0
IS_BIND_AWARE: 0
DB_ID: 201001
STATEMENT: SELECT column_value FROM __all_core_table WHERE TABLE_NAME = ? AND COLUMN_NAME = ?
QUERY_SQL: SELECT column_value FROM __all_core_table WHERE TABLE_NAME = '__all_global_stat' AND COLUMN_NAME = 'snapshot_gc_scn'
SPECIAL_PARAMS: NULL
PARAM_INFOS: {1,0,0,-1,22},{1,0,0,-1,22}
SYS_VARS: 45,45,4194304,+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,1,17180000512,17180000512,1,0,0,45,0,0,2,
PLAN_HASH: 12254811659671915614
FIRST_LOAD_TIME: 23-JUL-25 02.41.18.001108 PM
SCHEMA_VERSION: 1
LAST_ACTIVE_TIME: 29-JUL-25 04.50.27.582284 PM
AVG_EXE_USEC: 450
SLOWEST_EXE_TIME: 25-JUL-25 02.00.11.264722 AM
SLOWEST_EXE_USEC: 11331
SLOW_COUNT: 0
HIT_COUNT: 175010
PLAN_SIZE: 57640
EXECUTIONS: 175010
DISK_READS: 269
DIRECT_WRITES: 0
BUFFERS_GETS: 1301
APPLICATION_WATI_TIME: 0
CONCURRENCY_WAIT_TIME: 0
USER_IO_WAIT_TIME: 0
ROWS_PROCESSED: 175010
ELAPSED_TIME: 78782282
CPU_TIME: 18995304
LARGE_QUERYS: 0
DELAYED_LARGE_QUERYS: 0
DELAYED_PX_QUERYS: 0
OUTLINE_VERSION: 0
OUTLINE_ID: -1
OUTLINE_DATA: /*+BEGIN_OUTLINE_DATA INDEX(@"SEL$1" "oceanbase"."__all_core_table"@"SEL$1" "primary") OPTIMIZER_FEATURES_ENABLE('4.3.5.3') END_OUTLINE_DATA*/
HINTS_INFO: /*+ */
HINTS_ALL_WORKED: 1
ACS_SEL_INFO: NULL
TABLE_SCAN: 0
EVOLUTION: 0
EVO_EXECUTIONS: 0
EVO_CPU_TIME: 0
TIMEOUT_COUNT: 0
PS_STMT_ID: -1
SESSID: 0
TEMP_TABLES: NULL
IS_USE_JIT: 0
OBJECT_TYPE: SQL_PLAN
PL_SCHEMA_ID: 0
IS_BATCHED_MULTI_STMT: 0
RULE_NAME: NULL
PLAN_STATUS: ACTIVE
ADAPTIVE_FEEDBACK_TIMES: 0
FIRST_GET_PLAN_TIME: NULL
FIRST_EXE_USEC: NULL