Zhoutzzz commented on a change in pull request #13780:
URL: https://github.com/apache/shardingsphere/pull/13780#discussion_r756743250
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File path: docs/document/content/reference/shadow/_index.en.md
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@@ -248,4 +248,29 @@ props:
sql-comment-parse-enabled: true
```
-**Note**: The default shadow algorithm only supports note shadow algorithm.
+**Note**:
+The default shadow algorithm only supports note shadow algorithm.
+When using HINT, ensure that the configuration items of `props` in the
configuration file are less than or equal to those in the SQL comment, and that
the configuration items in the configuration file are the same as those in the
SQL comment. The fewer the configuration items in the configuration file, the
looser the matching conditions are
Review comment:
I agree with what you said, but the purpose of adding this document is
to make others better understand the matching mode of rules, because the
configuration of this part is less described in the current document. At the
same time, I think my change does not induce others to use it, but to tell
others how rules are matched
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