Amazon Redshift will no longer support the creation of new Python UDFs starting Patch 198. Existing Python UDFs will continue to function until June 30, 2026. For more information, see the [ blog post ](https://amazonaws-china.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/). 

# SYS monitoring views
<a name="serverless_views-monitoring"></a>

*Monitoring views* are system views in Amazon Redshift that are used to monitor query and workload resource usage of provisioned clusters and serverless workgroups. These views are located in the `pg_catalog` schema. To display the information provided by these views, run SQL SELECT statements.

Unless noted otherwise, these views are available for Amazon Redshift clusters and Amazon Redshift Serverless workgroups.

*SYS\_SERVERLESS\_USAGE* gathers usage data for Amazon Redshift Serverless only.

**Topics**
+ [SYS\_ANALYZE\_COMPRESSION\_HISTORY](r_SYS_ANALYZE_COMPRESSION_HISTORY.md)
+ [SYS\_ANALYZE\_HISTORY](SYS_ANALYZE_HISTORY.md)
+ [SYS\_APPLIED\_MASKING\_POLICY\_LOG](SYS_APPLIED_MASKING_POLICY_LOG.md)
+ [SYS\_AUTOMATIC\_OPTIMIZATION](SYS_AUTOMATIC_OPTIMIZATION.md)
+ [SYS\_AUTO\_TABLE\_OPTIMIZATION](r_SYS_AUTO_TABLE_OPTIMIZATION.md)
+ [SYS\_CHILD\_QUERY\_TEXT](SYS_CHILD_QUERY_TEXT.md)
+ [SYS\_CONNECTION\_LOG](SYS_CONNECTION_LOG.md)
+ [SYS\_COPY\_JOB](SYS_COPY_JOB.md)
+ [SYS\_COPY\_JOB\_DETAIL](SYS_COPY_JOB_DETAIL.md)
+ [SYS\_COPY\_JOB\_INFO](SYS_COPY_JOB_INFO.md)
+ [SYS\_COPY\_REPLACEMENTS](SYS_COPY_REPLACEMENTS.md)
+ [SYS\_DATASHARE\_CHANGE\_LOG](SYS_DATASHARE_CHANGE_LOG.md)
+ [SYS\_DATASHARE\_CROSS\_REGION\_USAGE](r_SYS_DATASHARE_CROSS_REGION_USAGE.md)
+ [SYS\_DATASHARE\_USAGE\_CONSUMER](SYS_DATASHARE_USAGE_CONSUMER.md)
+ [SYS\_DATASHARE\_USAGE\_PRODUCER](SYS_DATASHARE_USAGE_PRODUCER.md)
+ [SYS\_EXTERNAL\_QUERY\_DETAIL](SYS_EXTERNAL_QUERY_DETAIL.md)
+ [SYS\_EXTERNAL\_QUERY\_ERROR](SYS_EXTERNAL_QUERY_ERROR.md)
+ [SYS\_EXTRA\_COMPUTE\_FOR\_AUTOMATIC\_OPTIMIZATION](SYS_EXTRA_COMPUTE_FOR_AUTOMATIC_OPTIMIZATION.md)
+ [SYS\_INTEGRATION\_ACTIVITY](r_SYS_INTEGRATION_ACTIVITY.md)
+ [SYS\_INTEGRATION\_TABLE\_ACTIVITY](r_SYS_INTEGRATION_TABLE_ACTIVITY.md)
+ [SYS\_INTEGRATION\_TABLE\_STATE\_CHANGE](r_SYS_INTEGRATION_TABLE_STATE_CHANGE.md)
+ [SYS\_LOAD\_DETAIL](SYS_LOAD_DETAIL.md)
+ [SYS\_LUDF\_DETAIL](SYS_LUDF_DETAIL.md)
+ [SYS\_LOAD\_ERROR\_DETAIL](SYS_LOAD_ERROR_DETAIL.md)
+ [SYS\_LOAD\_HISTORY](SYS_LOAD_HISTORY.md)
+ [SYS\_MV\_REFRESH\_HISTORY](SYS_MV_REFRESH_HISTORY.md)
+ [SYS\_MV\_STATE](SYS_MV_STATE.md)
+ [SYS\_PROCEDURE\_CALL](SYS_PROCEDURE_CALL.md)
+ [SYS\_PROCEDURE\_MESSAGES](SYS_PROCEDURE_MESSAGES.md)
+ [SYS\_QUERY\_DETAIL](SYS_QUERY_DETAIL.md)
+ [SYS\_QUERY\_EXPLAIN](SYS_QUERY_EXPLAIN.md)
+ [SYS\_QUERY\_HISTORY](SYS_QUERY_HISTORY.md)
+ [SYS\_QUERY\_TEXT](SYS_QUERY_TEXT.md)
+ [SYS\_REDSHIFT\_TEMPLATE](SYS_REDSHIFT_TEMPLATE.md)
+ [SYS\_RESTORE\_LOG](SYS_RESTORE_LOG.md)
+ [SYS\_RESTORE\_STATE](SYS_RESTORE_STATE.md)
+ [SYS\_SCHEMA\_QUOTA\_VIOLATIONS](r_SYS_SCHEMA_QUOTA_VIOLATIONS.md)
+ [SYS\_SERVERLESS\_USAGE](SYS_SERVERLESS_USAGE.md)
+ [SYS\_SESSION\_HISTORY](SYS_SESSION_HISTORY.md)
+ [SYS\_SPATIAL\_SIMPLIFY](SYS_SPATIAL_SIMPLIFY.md)
+ [SYS\_STREAM\_SCAN\_ERRORS](r_SYS_STREAM_SCAN_ERRORS.md)
+ [SYS\_STREAM\_SCAN\_STATES](r_SYS_STREAM_SCAN_STATES.md)
+ [SYS\_TRANSACTION\_HISTORY](SYS_TRANSACTION_HISTORY.md)
+ [SYS\_UDF\_LOG](SYS_UDF_LOG.md)
+ [SYS\_UNLOAD\_DETAIL](SYS_UNLOAD_DETAIL.md)
+ [SYS\_UNLOAD\_HISTORY](SYS_UNLOAD_HISTORY.md)
+ [SYS\_USERLOG](SYS_USERLOG.md)
+ [SYS\_VACUUM\_HISTORY](SYS_VACUUM_HISTORY.md)