cloud-fan commented on a change in pull request #30154:
URL: https://github.com/apache/spark/pull/30154#discussion_r517135283
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File path: sql/core/src/main/scala/org/apache/spark/sql/jdbc/DerbyDialect.scala
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@@ -50,4 +50,17 @@ private object DerbyDialect extends JdbcDialect {
override def renameTable(oldTable: String, newTable: String): String = {
s"RENAME TABLE $oldTable TO $newTable"
}
+
+ // Derby currently doesn't support comment on table. Here is the ticket to
add the support
+ // https://issues.apache.org/jira/browse/DERBY-7008
+ override def createTable(
+ table: String,
+ strSchema: String,
+ createTableOptions: String,
+ tableComment: String): Array[String] = {
+ if (!tableComment.isEmpty) {
+ logWarning("Cannot create JDBC table comment. The table comment will be
ignored.")
Review comment:
So you are treating `comment` as a special table property that is OK to
ignore. Is `comment` the only one?
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