stevenzwu commented on code in PR #4886:
URL: https://github.com/apache/iceberg/pull/4886#discussion_r884363639
##########
core/src/main/java/org/apache/iceberg/BaseIncrementalAppendScan.java:
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@@ -71,46 +71,41 @@ public IncrementalAppendScan toSnapshot(long toSnapshotId) {
@Override
public CloseableIterable<FileScanTask> planFiles() {
- long toSnapshotIdInclusive;
- if (context().toSnapshotId() != null) {
- toSnapshotIdInclusive = context().toSnapshotId();
- } else if (table().currentSnapshot() != null) {
- toSnapshotIdInclusive = table().currentSnapshot().snapshotId();
- } else if (context().fromSnapshotId() != null) {
- throw new IllegalArgumentException(
- "Invalid config: end snapshot is not set, start snapshot is set, and
table has no current snapshot");
- } else {
- // It is an empty table (no current snapshot). Both from and to
snapshots aren't set either.
- // In this case, listener notification is also skipped
+ Long fromSnapshotId = context().fromSnapshotId();
+ Long toSnapshotId = context().toSnapshotId();
+ if (fromSnapshotId == null && toSnapshotId == null &&
table().currentSnapshot() == null) {
+ // If it is an empty table (no current snapshot) and both from and to
snapshots aren't set either,
+ // simply return an empty iterable. In this case, listener notification
is also skipped.
return CloseableIterable.empty();
}
+ long toSnapshotIdInclusive = toSnapshotIdExclusive();
// fromSnapshotIdExclusive can be null. appendsBetween handles null
fromSnapshotIdExclusive properly
// by finding the oldest ancestor of end snapshot.
- Long fromSnapshotIdExclusive = context().fromSnapshotId();
- if (context().fromSnapshotId() != null) {
+ Long fromSnapshotIdExclusive = fromSnapshotId;
Review Comment:
good point. will update
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