ticdc: add a note about schema (#18816) (#18821)

pingcap · Sep 6, 2024 · e7113c9 · e7113c9
1 parent f5d962b
commit e7113c9
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/ticdc/ticdc-sink-to-kafka.md b/ticdc/ticdc-sink-to-kafka.md
@@ -195,10 +195,10 @@ dispatchers = [
 
 You can use topic = "xxx" to specify a Topic dispatcher and use topic expressions to implement flexible topic dispatching policies. It is recommended that the total number of topics be less than 1000.
 
-The format of the Topic expression is `[prefix][{schema}][middle][{table}][suffix]`.
+The format of the Topic expression is `[prefix]{schema}[middle][{table}][suffix]`.
 
 - `prefix`: optional. Indicates the prefix of the Topic Name.
-- `[{schema}]`: optional. Used to match the schema name.
+- `{schema}`: required. Used to match the schema name. Starting from v7.1.4, this parameter is optional.
 - `middle`: optional. Indicates the delimiter between schema name and table name.
 - `{table}`: optional. Used to match the table name.
 - `suffix`: optional. Indicates the suffix of the Topic Name.