[GitHub] [pulsar] Anonymitaet commented on a change in pull request #5757: [doc]Modify schema compatibility check doc

[GitBox <gi...@apache.org>]

Anonymitaet commented on a change in pull request #5757: [doc]Modify schema compatibility check doc
URL: https://github.com/apache/pulsar/pull/5757#discussion_r351958437
 
 

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 File path: site2/docs/schema-evolution-compatibility.md
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 @@ -366,6 +366,40 @@ Any order
 
 </tr>
 
+<tr>
+
+<td> 
+
+`UNDEFINED`
+
+</td> 
+
+<td> 
+
+The schema compatibility check strategy in order to Upgrade to 2.5.0 or above for compatibility with pulsar version below 2.5.0.
 
 Review comment:
   ```suggestion
   * If you upgrade a lower version to Pulsar 2.5.0, then it uses the `UNDEFINED` strategy, at this time, it actually uses the compatibility strategy of the topic.
   
   * If you use Pulsar 2.5.0 and a higher version, then it uses the `UNDEFINED` strategy, at this time, it actually uses the `FULL` compatibility strategy.
   ```
   
   

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