jackye1995 commented on code in PR #5364:
URL: https://github.com/apache/iceberg/pull/5364#discussion_r955590089
##########
core/src/main/java/org/apache/iceberg/BaseTableScan.java:
##########
@@ -86,20 +90,56 @@ public TableScan appendsAfter(long fromSnapshotId) {
public TableScan useSnapshot(long scanSnapshotId) {
Preconditions.checkArgument(
snapshotId() == null, "Cannot override snapshot, already set to
id=%s", snapshotId());
+ Preconditions.checkArgument(
+ ref() == null, "Cannot override snapshot, already set to id=%s",
ref());
Preconditions.checkArgument(
tableOps().current().snapshot(scanSnapshotId) != null,
"Cannot find snapshot with ID %s",
scanSnapshotId);
return newRefinedScan(
- tableOps(), table(), tableSchema(),
context().useSnapshotId(scanSnapshotId));
+ tableOps(),
+ table(),
+ tableSchema(),
+
context().useRef(SnapshotRef.MAIN_BRANCH).useSnapshotId(scanSnapshotId));
+ }
+
+ @Override
+ public TableScan useRef(String name) {
+ Preconditions.checkArgument(
+ snapshotId() == null, "Cannot override ref, already set to id=%s",
snapshotId());
Review Comment:
I think `set snapshot id=` is more clear, otherwise people might
misunderstand and think there is a ref id.
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