Github user bolkedebruin commented on a diff in the pull request:
https://github.com/apache/spark/pull/19911#discussion_r155619800
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/jdbc/DB2Dialect.scala ---
@@ -48,5 +48,7 @@ private object DB2Dialect extends JdbcDialect {
case _ => None
}
- override def isCascadingTruncateTable(): Option[Boolean] = Some(false)
+ override def getTruncateQuery(table: String): String = {
+ s"TRUNCATE $table"
--- End diff --
(And all others that are not Postgres?)
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