hubgeter commented on code in PR #39239:
URL: https://github.com/apache/doris/pull/39239#discussion_r1720790583
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fe/fe-core/src/main/java/org/apache/doris/datasource/hive/event/AlterPartitionEvent.java:
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@@ -145,9 +145,7 @@ protected boolean canBeBatched(MetastoreEvent that) {
// `that` event can be batched if this event's partitions contains all
of the partitions which `that` event has
// else just remove `that` event's relevant partitions
for (String partitionName : getAllPartitionNames()) {
- if (thatPartitionEvent instanceof AddPartitionEvent) {
- ((AddPartitionEvent)
thatPartitionEvent).removePartition(partitionName);
- } else if (thatPartitionEvent instanceof DropPartitionEvent) {
+ if (thatPartitionEvent instanceof DropPartitionEvent) {
Review Comment:
Suppose you have a Hive partition table `users`. Execute the `INSERT INTO
TABLE users PARTITION (country='ABC') VALUES (3, 'Rahul Kumar', 28), (4, 'Priya
Singh', 24);` statement. If you did not have the partition `country='ABC'`
before, Hive will generate two events.
1. add partition event
2. alter partition event
The original logic is to merge these two events into one alter event for
processing, but in the end this partition will not be added to the partitions
cache. In order to reduce the judgment logic of the alter event, I will not
merge these two events here.
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