Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/20057#discussion_r168927633
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/jdbc/MySQLDialect.scala ---
@@ -46,4 +46,17 @@ private case object MySQLDialect extends JdbcDialect {
}
override def isCascadingTruncateTable(): Option[Boolean] = Some(false)
+
+ /**
+ * The SQL query used to truncate a table.
+ * @param table The JDBCOptions.
--- End diff --
ditto.
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