System Functions

Snowflake provides the following types of system functions:

• Control functions that allow you to execute actions in the system (e.g. aborting a query).

• Information functions that return information about the system (e.g. calculating the clustering depth of a table).

• Information functions that return information about queries (e.g. information about EXPLAIN plans).

Many of these system functions have the prefix SYSTEM$ (e.g. SYSTEM$TYPEOF). For the system functions that use this prefix, you must specify the prefix when calling the function. For example:

SELECT SYSTEM$TYPEOF('a');

Function Name	Notes
Control
SYSTEM$ABORT_SESSION
SYSTEM$ABORT_TRANSACTION
SYSTEM$AUTHORIZE_PRIVATELINK
SYSTEM$AUTHORIZE_STAGE_PRIVATELINK_ACCESS
SYSTEM$CANCEL_ALL_QUERIES
SYSTEM$CANCEL_QUERY
SYSTEM$DISABLE_BEHAVIOR_CHANGE_BUNDLE
SYSTEM$DISABLE_DATABASE_REPLICATION
SYSTEM$ENABLE_BEHAVIOR_CHANGE_BUNDLE
SYSTEM$GLOBAL_ACCOUNT_SET_PARAMETER
SYSTEM$MIGRATE_SAML_IDP_REGISTRATION
SYSTEM$PIPE_FORCE_RESUME
SYSTEM$REVOKE_PRIVATELINK
SYSTEM$REVOKE_STAGE_PRIVATELINK_ACCESS
SYSTEM$TASK_DEPENDENTS_ENABLE
SYSTEM$USER_TASK_CANCEL_ONGOING_EXECUTIONS
SYSTEM$WAIT
Information
EXTRACT_SEMANTIC_CATEGORIES
SYSTEM$ALLOWLIST
SYSTEM$ALLOWLIST_PRIVATELINK
SYSTEM$BEHAVIOR_CHANGE_BUNDLE_STATUS
SYSTEM$CLUSTERING_DEPTH
SYSTEM$CLUSTERING_INFORMATION
SYSTEM$CLUSTERING_RATIO	Deprecated; use the other clustering functions instead.
SYSTEM$CURRENT_USER_TASK_NAME
SYSTEM$DATABASE_REFRESH_HISTORY	Deprecated; use DATABASE_REFRESH_HISTORY instead.
SYSTEM$DATABASE_REFRESH_PROGRESS , SYSTEM$DATABASE_REFRESH_PROGRESS_BY_JOB	Deprecated; use DATABASE_REFRESH_PROGRESS , DATABASE_REFRESH_PROGRESS_BY_JOB instead.
SYSTEM$ESTIMATE_SEARCH_OPTIMIZATION_COSTS
SYSTEM$EXTERNAL_TABLE_PIPE_STATUS
SYSTEM$GENERATE_SAML_CSR
SYSTEM$GENERATE_SCIM_ACCESS_TOKEN
SYSTEM$GET_AWS_SNS_IAM_POLICY
SYSTEM$GET_PREDECESSOR_RETURN_VALUE
SYSTEM$GET_PRIVATELINK
SYSTEM$GET_PRIVATELINK_AUTHORIZED_ENDPOINTS
SYSTEM$GET_PRIVATELINK_CONFIG
SYSTEM$GET_SNOWFLAKE_PLATFORM_INFO
SYSTEM$GET_TAG
SYSTEM$GET_TAG_ALLOWED_VALUES
SYSTEM$GET_TAG_ON_CURRENT_COLUMN
SYSTEM$GET_TAG_ON_CURRENT_TABLE
SYSTEM$LAST_CHANGE_COMMIT_TIME
SYSTEM$PIPE_STATUS
SYSTEM$SHOW_OAUTH_CLIENT_SECRETS
SYSTEM$SET_RETURN_VALUE
SYSTEM$STREAM_GET_TABLE_TIMESTAMP
SYSTEM$STREAM_HAS_DATA
SYSTEM$TYPEOF
SYSTEM$VERIFY_EXTERNAL_OAUTH_TOKEN
SYSTEM$WHITELIST	Deprecated; use SYSTEM$ALLOWLIST instead.
SYSTEM$WHITELIST_PRIVATELINK	Deprecated; use SYSTEM$ALLOWLIST_PRIVATELINK instead.
Query Information
EXPLAIN_JSON
GET_QUERY_OPERATOR_STATS
SYSTEM$ESTIMATE_QUERY_ACCELERATION
SYSTEM$EXPLAIN_PLAN_JSON
SYSTEM$EXPLAIN_JSON_TO_TEXT