Note
- This view is available starting with V4.3.5 for V4.3.x.
- This view is available starting with V4.2.2 for V4.2.x.
Purpose
The CDB_WR_SQLSTAT view displays basic performance statistics of SQL statements executed by all tenants. Each SQL statement is represented as a row (i.e., each unique combination of SQL_ID and Plan_Hash is a row). The lists with _DELTA in their names indicate the incremental statistics from the last WR snapshot collection to the current time.
Columns
Column |
Type |
Nullable |
Description |
|---|---|---|---|
| TENANT_ID | bigint(20) | NO | The tenant ID. |
| SNAP_ID | bigint(20) | NO | The snapshot ID. |
| SVR_IP | varchar(46) | NO | The IP address of the node. |
| SVR_PORT | bigint(20) | NO | The port number of the node. |
| SQL_ID | varchar(32) | NO | The ID of the SQL statement. |
| PLAN_HASH | bigint(20) unsigned | NO | The hash value of the execution plan. |
| PLAN_ID | bigint(20) | NO | The ID of the execution plan. |
| PLAN_TYPE | bigint(20) | NO | The type of the SQL plan. The value can be 1, 2, or 3:
For PL object cache, the value can be 1, 2, 3, or 4:
|
| MODULE | varchar(64) | YES | The application module when the statement was first parsed. |
| ACTION | varchar(64) | YES | The application action when the statement was first parsed. |
| PARSING_DB_ID | bigint(20) | NO | The ID of the database when the statement was parsed. |
| PARSING_DB_NAME | varchar(128) | NO | The name of the database when the statement was parsed. |
| PARSING_USER_ID | bigint(20) | NO | The ID of the user when the statement was parsed. |
| EXECUTIONS_TOTAL | bigint(20) | NO | The total number of executions of the plan in the plan cache. |
| EXECUTIONS_DELTA | bigint(20) | NO | The incremental number of executions of the plan in the plan cache. |
| DISK_READS_TOTAL | bigint(20) | NO | The total number of disk reads. |
| DISK_READS_DELTA | bigint(20) | NO | The incremental number of disk reads. |
| BUFFER_GETS_TOTAL | bigint(20) | NO | The total number of logical reads from the cache. |
| BUFFER_GETS_DELTA | bigint(20) | NO | The incremental number of logical reads from the cache. |
| ELAPSED_TIME_TOTAL | bigint(20) | NO | The total time consumed by the statement. For parallel execution, this value is the sum of the elapsed times of each execution thread. |
| ELAPSED_TIME_DELTA | bigint(20) | NO | The incremental time consumed by the statement. |
| CPU_TIME_TOTAL | bigint(20) | NO | The total CPU time consumed. |
| CPU_TIME_DELTA | bigint(20) | NO | The incremental CPU time consumed. |
| CCWAIT_TOTAL | bigint(20) | NO | The total time consumed by concurrency-related wait events. |
| CCWAIT_DELTA | bigint(20) | NO | The incremental time consumed by concurrency-related wait events. |
| USERIO_WAIT_TOTAL | bigint(20) | NO | The total time consumed by I/O wait events. |
| USERIO_WAIT_DELTA | bigint(20) | NO | The incremental time consumed by I/O wait events. |
| APWAIT_TOTAL | bigint(20) | NO | The total time consumed by application-related wait events. |
| APWAIT_DELTA | bigint(20) | NO | The incremental time consumed by application-related wait events. |
| PHYSICAL_READ_REQUESTS_TOTAL | bigint(20) | NO | The total number of physical read requests. |
| PHYSICAL_READ_REQUESTS_DELTA | bigint(20) | NO | The incremental number of physical read requests. |
| PHYSICAL_READ_BYTES_TOTAL | bigint(20) | NO | The total number of bytes read. |
| PHYSICAL_READ_BYTES_DELTA | bigint(20) | NO | The incremental number of bytes read. |
| WRITE_THROTTLE_TOTAL | bigint(20) | NO | The total time spent on throttling during write operations to the MemStore. |
| WRITE_THROTTLE_DELTA | bigint(20) | NO | The incremental time spent on throttling during write operations to the MemStore. |
| ROWS_PROCESSED_TOTAL | bigint(20) | NO | The total number of rows processed by the statement. |
| ROWS_PROCESSED_DELTA | bigint(20) | NO | The incremental number of rows processed by the statement. |
| MEMSTORE_READ_ROWS_TOTAL | bigint(20) | NO | The total number of rows read from the MemStore. |
| MEMSTORE_READ_ROWS_DELTA | bigint(20) | NO | The incremental number of rows read from the MemStore. |
| MINOR_SSSTORE_READ_ROWS_TOTAL | bigint(20) | NO | The total number of rows read from the MINOR SSStore. |
| MINOR_SSSTORE_READ_ROWS_DELTA | bigint(20) | NO | The incremental number of rows read from the MINOR SSStore. |
| MAJOR_SSSTORE_READ_ROWS_TOTAL | bigint(20) | NO | The total number of rows read from the MAJOR SSStore. |
| MAJOR_SSSTORE_READ_ROWS_DELTA | bigint(20) | NO | The incremental number of rows read from the MAJOR SSStore. |
| RPC_TOTAL | bigint(20) | NO | The total number of RPC calls. |
| RPC_DELTA | bigint(20) | NO | The incremental number of RPC calls. |
| FETCHES_TOTAL | bigint(20) | NO | The total number of result set fetches. |
| FETCHES_DELTA | bigint(20) | NO | The incremental number of result set fetches. |
| RETRY_TOTAL | bigint(20) | NO | The total number of SQL retries. |
| RETRY_DELTA | bigint(20) | NO | The incremental number of SQL retries. |
| PARTITION_TOTAL | bigint(20) | NO | The total number of partitions scanned by the SQL statement. |
| PARTITION_DELTA | bigint(20) | NO | The incremental number of partitions scanned by the SQL statement. |
| NESTED_SQL_TOTAL | bigint(20) | NO | The total number of nested SQL statements executed. Each time a sub-SQL statement is executed, the value increases by 1. |
| NESTED_SQL_DELTA | bigint(20) | NO | The incremental number of nested SQL statements executed. |
| SOURCE_IP | varchar(46) | NO | The IP address of the request source. |
| SOURCE_PORT | bigint(20) | NO | The port number of the request source. |
| ROUTE_MISS_TOTAL | bigint(20) | NO | The total number of times that the request partition is not hit since the OBServer started.
Note
|
| ROUTE_MISS_DELTA | bigint(20) | NO | The number of times that the request partition is not hit since the last WR snapshot was collected.
Note
|
| FIRST_LOAD_TIME | timestamp(6) | YES | The time when the plan was generated.
Note
|
| PLAN_CACHE_HIT_TOTAL | bigint(20) | NO | The total number of times that the Plan Cache is hit since the OBServer started.
Note
|
| PLAN_CACHE_HIT_DELTA | bigint(20) | NO | The number of times that the Plan Cache is hit since the last WR snapshot was collected.
Note
|
| MUTI_QUERY_TOTAL | bigint(20) | NO | The number of times that the SQL statement is in a Multi Query since the execution plan was generated.
NoteFor V4.4.x, this column is available starting with V4.4.2. |
| MUTI_QUERY_DELTA | bigint(20) | NO | The number of times that the SQL statement is in a Multi Query since the last WR snapshot was collected.
NoteFor V4.4.x, this column is available starting with V4.4.2. |
| MUTI_QUERY_BATCH_TOTAL | bigint(20) | NO | The number of times that the SQL batch is executed since the execution plan was generated.
NoteFor V4.4.x, this column is available starting with V4.4.2. |
| MUTI_QUERY_BATCH_DELTA | bigint(20) | NO | The number of times the SQL batch has been executed since the last WR snapshot was collected.
NoteThis column is available starting with V4.4.2 in V4.4.x. |
| FULL_TABLE_SCAN_TOTAL | bigint(20) | NO | The number of times the SQL has performed a full table scan since the execution plan was generated.
NoteThis column is available starting with V4.4.2 in V4.4.x. |
| FULL_TABLE_SCAN_DELTA | bigint(20) | NO | The number of times the SQL has performed a full table scan since the last WR snapshot was collected.
NoteThis column is available starting with V4.4.2 in V4.4.x. |
| ERROR_COUNT_TOTAL | bigint(20) | NO | The number of errors that have occurred in the SQL since the execution plan was generated.
NoteThis column is available starting with V4.4.2 in V4.4.x. |
| ERROR_COUNT_DELTA | bigint(20) | NO | The number of errors that have occurred in the SQL since the last WR snapshot was collected.
NoteThis column is available starting with V4.4.2 in V4.4.x. |
| SAMPLE_TIME | timestamp(6) | NO | The time when the SQLSTAT snapshot was written to disk. Within a single WR snapshot interval, SQLSTAT may be written to disk multiple times
NoteThis column is available starting with V4.4.2 in V4.4.x. |
| LATEST_ACTIVE_TIME | timestamp(6) | YES | The last active time of the plan corresponding to the SQL ID + Plan Hash on a node.
NoteThis column is available starting with V4.4.2 in V4.4.x. |
Sample query
Query the basic performance statistics of all SQL statements executed by all tenants, and display the first record.
obclient [oceanbase]> SELECT * FROM oceanbase.CDB_WR_SQLSTAT LIMIT 1\G
The query result is as follows:
*************************** 1. row ***************************
TENANT_ID: 1
SNAP_ID: 1
SVR_IP: xx.xx.xx.xx
SVR_PORT: 2882
SQL_ID: 01E0085070E156F31939693E406B21A0
PLAN_HASH: 8467309370478499688
PLAN_TYPE: 0
MODULE: NULL
ACTION: NULL
PARSING_DB_ID: 0
PARSING_DB_NAME:
PARSING_USER_ID: 0
EXECUTIONS_TOTAL: 1
EXECUTIONS_DELTA: 1
DISK_READS_TOTAL: 0
DISK_READS_DELTA: 0
BUFFER_GETS_TOTAL: 0
BUFFER_GETS_DELTA: 0
ELAPSED_TIME_TOTAL: 2930
ELAPSED_TIME_DELTA: 2930
CPU_TIME_TOTAL: 0
CPU_TIME_DELTA: 0
CCWAIT_TOTAL: 0
CCWAIT_DELTA: 0
USERIO_WAIT_TOTAL: 0
USERIO_WAIT_DELTA: 0
APWAIT_TOTAL: 0
APWAIT_DELTA: 0
PHYSICAL_READ_REQUESTS_TOTAL: 0
PHYSICAL_READ_REQUESTS_DELTA: 0
PHYSICAL_READ_BYTES_TOTAL: 0
PHYSICAL_READ_BYTES_DELTA: 0
WRITE_THROTTLE_TOTAL: 0
WRITE_THROTTLE_DELTA: 0
ROWS_PROCESSED_TOTAL: 1
ROWS_PROCESSED_DELTA: 1
MEMSTORE_READ_ROWS_TOTAL: 0
MEMSTORE_READ_ROWS_DELTA: 0
MINOR_SSSTORE_READ_ROWS_TOTAL: 0
MINOR_SSSTORE_READ_ROWS_DELTA: 0
MAJOR_SSSTORE_READ_ROWS_TOTAL: 0
MAJOR_SSSTORE_READ_ROWS_DELTA: 0
RPC_TOTAL: 0
RPC_DELTA: 0
FETCHES_TOTAL: 0
FETCHES_DELTA: 0
RETRY_TOTAL: 0
RETRY_DELTA: 0
PARTITION_TOTAL: 1
PARTITION_DELTA: 1
NESTED_SQL_TOTAL: 0
NESTED_SQL_DELTA: 0
SOURCE_IP: xx.xx.xx.xx
SOURCE_PORT: 2882
ROUTE_MISS_TOTAL: 0
ROUTE_MISS_DELTA: 0
FIRST_LOAD_TIME: 2026-02-24 17:53:53.855956
PLAN_CACHE_HIT_TOTAL: 0
PLAN_CACHE_HIT_DELTA: 0
MUTI_QUERY_TOTAL: 0
MUTI_QUERY_DELTA: 0
MUTI_QUERY_BATCH_TOTAL: 0
MUTI_QUERY_BATCH_DELTA: 0
FULL_TABLE_SCAN_TOTAL: 0
FULL_TABLE_SCAN_DELTA: 0
ERROR_COUNT_TOTAL: 0
ERROR_COUNT_DELTA: 0
SAMPLE_TIME: 2026-02-24 17:53:53.000000
LATEST_ACTIVE_TIME: 2026-02-24 17:53:53.840604
1 row in set (0.005 sec)