sijia-w commented on a change in pull request #9530:
URL: https://github.com/apache/pulsar/pull/9530#discussion_r582070827
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File path: site2/docs/reference-pulsar-admin.md
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@@ -2369,20 +2348,279 @@ Remove the message TTL for a topic.
Usage
```bash
-$ pulsar-admin topics remove-message-ttl tenant/namespace/topic
-=======
+$ pulsar-admin topics remove-message-ttl tenant/namespace/topic
+```
+
+Options
+|Flag|Description|Default|
|---|---|---|
|`--enable`, `-e`|Enable message deduplication on the specified topic.|false|
|`--disable`, `-d`|Disable message deduplication on the specified topic.|false|
+### `get-deduplication`
+Get a deduplication policy for a topic.
+
+Usage
+```bash
+$ pulsar-admin topics get-deduplication tenant/namespace/topic
+```
+
+### `set-deduplication`
+Set a deduplication policy for a topic.
+
+Usage
+```bash
+$ pulsar-admin topics set-deduplication tenant/namespace/topic options
+```
+
### `remove-deduplication`
-Remove a deduplication policy from a topic.
+Remove a deduplication policy for a topic.
Usage
```bash
$ pulsar-admin topics remove-deduplication tenant/namespace/topic
```
+### `get-retention`
+Get the retention policy that is applied to a topic.
+
+Usage
+```bash
+$ pulsar-admin topics get-retention tenant/namespace/topic
+```
+
+### `set-retention`
+Set the retention policy that is applied to a topic.
+
+Usage
+```bash
+$ pulsar-admin topics set-retention tenant/namespace/topic options
Review comment:
There are no examples for the commands on the namespace level. So
probably it's unnecessary.
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