yathindranath commented on a change in pull request #497: Support retaining
last N snapshots
URL: https://github.com/apache/incubator-iceberg/pull/497#discussion_r328769072
##########
File path: core/src/main/java/org/apache/iceberg/RemoveSnapshots.java
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@@ -310,6 +323,19 @@ private void deleteDataFiles(Set<String> manifestsToScan,
Set<String> manifestsT
return filesToDelete;
}
+ private Snapshot findNthSnapshot(int snapshotIndex) {
+ Snapshot lastSnapshot = base.currentSnapshot();
+ int snapshotCount = 1;
+ while (lastSnapshot != null) {
+ if (snapshotCount == snapshotIndex) {
+ return lastSnapshot;
+ }
+ snapshotCount++;
+ lastSnapshot = (lastSnapshot.parentId() != null) ?
base.snapshot(lastSnapshot.parentId()) : null;
Review comment:
Thanks @xabriel and @aokolnychyi for the review. Another option can be to
add a different method to expire deleted/rolled back snapshots.
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