huaxingao commented on a change in pull request #30154:
URL: https://github.com/apache/spark/pull/30154#discussion_r514657593



##########
File path: 
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/jdbc/JDBCTableCatalog.scala
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@@ -123,8 +123,14 @@ class JDBCTableCatalog extends TableCatalog with Logging {
         "ignored: " + properties.asScala.map { case (k, v) => s"$k=$v" 
}.mkString("[", ", ", "]"))

Review comment:
       OK, so we will support `comment` and ignore `provider`, `owner`, and 
`location` for now.
   
   For supported table properties, do we need to make them database specific? 
for example, `ENGINE` and `CHARSET` are supported table properties for MySQL 
but not supported by other databases.
   




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