[DOC-12880] Auto Update Statistics

modules/guides/pages/cbo.adoc

@@ -93,6 +93,10 @@ For more information and examples, refer to xref:n1ql:n1ql-manage/query-settings
 Before you can use the Cost-Based Optimizer with a query, you must first gather the statistics that it needs.
 The Query service automatically gathers statistics whenever an index is created or built, and you can update statistics at any time.
 
+You can also configure a scheduled task to automatically check and update statistics using xref:n1ql:n1ql-language-reference/auto-update-statistics.adoc[Auto Update Statistics (AUS)].
+During the scheduled window, AUS evaluates the existing statistics and updates them if they are outdated.
+For more information on how to enable this feature and set the schedule, see xref:n1ql:n1ql-language-reference/auto-update-statistics.adoc#enable-and-schedule-aus[Enable and Schedule AUS].
+
 include::n1ql:page$n1ql-language-reference/statistics-expressions.adoc[tags=overview]
 
 === Updating Statistics for Expressions
@@ -220,6 +224,7 @@ Explanation:
 Reference:
 
 * xref:n1ql:n1ql-language-reference/updatestatistics.adoc[UPDATE STATISTICS]
+* xref:n1ql:n1ql-language-reference/auto-update-statistics.adoc[Auto Update Statistics]
 
 Administrator guides:
 

modules/n1ql/pages/advanced.adoc

@@ -24,6 +24,7 @@ The cost-based optimizer takes into account the cost of memory, CPU, network tra
 
 * xref:n1ql:n1ql-language-reference/cost-based-optimizer.adoc[]
 * xref:guides:cbo.adoc[]
+* xref:n1ql:n1ql-language-reference/auto-update-statistics.adoc[]
 
 == {sqlpp} Support for Couchbase Transactions
 

modules/n1ql/pages/n1ql-intro/sysinfo.adoc

@@ -73,6 +73,8 @@ a| [%hardbreaks]
 <<sys-transactions,system:transactions>>
 <<sys-sequences,system:sequences>>
 <<sys-all-sequences,system:all-sequences>>
+xref:n1ql:n1ql-language-reference/auto-update-statistics.adoc#system_aus[system:aus]
+xref:n1ql:n1ql-language-reference/auto-update-statistics.adoc#system_aus_settings[system:aus_settings]
 |===
 
 == Authentication and Client Privileges
@@ -1356,6 +1358,8 @@ This catalog contains the following attributes:
 __required__
 |The class of the task.
 
+For tasks related to xref:n1ql:n1ql-language-reference/auto-update-statistics.adoc[Auto Update Statistics (AUS)], the class is `auto_update_statistics`.
+
 *Example*: ``advisor``
 |string
 
@@ -1383,7 +1387,17 @@ __required__
 __required__
 |The state of the task.
 
-*Values*: `scheduled`, `cancelled`, `completed`
+Possible values are:
+--
+* `scheduled`: The task is scheduled and yet to run.
+* `deleting`: The scheduled task is in the process of being cancelled.
+* `cancelled`: The task was cancelled before it began executing.
+* `running`: The task is currently executing.
+* `aborting`: The running task is in the process of being aborted.
+* `aborted`: The task was aborted while it was running.
+* `completed`: The task completed successfully without being cancelled or aborted.
+--
+
 |string
 
 |**subClass** +