n3nash commented on a change in pull request #1964:
URL: https://github.com/apache/hudi/pull/1964#discussion_r475892688
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File path:
hudi-common/src/main/java/org/apache/hudi/common/table/timeline/HoodieTimeline.java
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@@ -232,6 +233,12 @@
*/
Option<byte[]> getInstantDetails(HoodieInstant instant);
+ /**
+ * Returns partitions that have been modified in the timeline. This includes
internal operations such as clean.
+ * Note that this only returns data for completed instants.
+ */
+ List<String> getPartitionsMutated();
Review comment:
I don't think this makes sense in the timeline as of now. If you take a
look at the timeline API's, they only talk about the metadata that has
changed. `getPartitionsMutated` conceptually is providing what has changed in
the underlying data as opposed to what has changed in the timeline per se.
Generally, all of this information should come from the timeline but that
requires a full redesign on the timeline. Should we add this API here ->
https://github.com/apache/hudi/blob/master/hudi-client/src/main/java/org/apache/hudi/client/HoodieReadClient.java#L195
? And you can wrap this functionality in a TimelineUtils ?
When we have clearer design on timeline, we can merge back the TimelineUtils
to the real timeline...
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