Indhumathi27 commented on a change in pull request #3184: [CARBONDATA-3357]
Support TableProperties from single parent table and restrict
alter/delete/partition on mv
URL: https://github.com/apache/carbondata/pull/3184#discussion_r282591445
##########
File path:
integration/spark2/src/main/scala/org/apache/spark/sql/execution/command/mv/DataMapListeners.scala
##########
@@ -139,3 +148,130 @@ object LoadPostDataMapListener extends
OperationEventListener {
}
}
}
+
+/**
+ * Listeners to block operations like delete segment on id or by date on tables
+ * having an mv datamap or on mv datamap tables
+ */
+object DataMapDeleteSegmentPreListener extends OperationEventListener {
+ /**
+ * Called on a specified event occurrence
+ *
+ * @param event
+ * @param operationContext
+ */
+ override def onEvent(event: Event, operationContext: OperationContext): Unit
= {
+ val carbonTable = event match {
+ case e: DeleteSegmentByIdPreEvent =>
+ e.asInstanceOf[DeleteSegmentByIdPreEvent].carbonTable
+ case e: DeleteSegmentByDatePreEvent =>
+ e.asInstanceOf[DeleteSegmentByDatePreEvent].carbonTable
+ }
+ if (null != carbonTable) {
+ if (CarbonTable.hasMVDataMap(carbonTable)) {
Review comment:
Moved to
integration/spark2/src/main/scala/org/apache/spark/util/DataMapUtil.scala
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