TyrantLucifer commented on code in PR #2776:
URL: 
https://github.com/apache/incubator-seatunnel/pull/2776#discussion_r973708321


##########
docs/en/connector/sink/Jdbc.mdx:
##########
@@ -75,9 +75,9 @@ The transaction isolation level, which applies to current 
connection. The defaul
 ### customUpdateStmt [string]
 
 Configure when `saveMode` is specified as `update` , which is used to specify 
the update statement template for key conflicts
-
-Refer to the usage of `INSERT INTO table (...) values (...) ON DUPLICATE KEY 
UPDATE... ` of `mysql` , use placeholders or fixed values in `values`
-
+if `customUpdateStmt` is empty ,the sql will auto-generate for all columns, 
else use your sql which refer to the usage of
+`INSERT INTO table (...) values (...) ON DUPLICATE KEY UPDATE... ` of `mysql` 
, use placeholders or fixed values in `values`
+tips: the tableName of sql should be consistent with the dbName.

Review Comment:
   What's the meaning of this? Do you mean that the table in sql statement 
should be consistent with `dbTable`? If so, please describe it more clearly



##########
docs/en/connector/sink/Jdbc.mdx:
##########
@@ -56,7 +56,7 @@ user password
 
 ### dbTable [string]
 
-Source data table name
+sink source table name, which will be created if not existed

Review Comment:
   Sink table name, not sink source table name, this is ambiguous. The best 
description is that `Sink table name, if this table is not existed, it wiil be 
created`.



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