adnanhemani commented on code in PR #5116:
URL: https://github.com/apache/polaris/pull/5116#discussion_r3626778756
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runtime/service/src/main/java/org/apache/polaris/service/catalog/iceberg/IcebergCatalogHandler.java:
##########
@@ -1693,20 +1692,25 @@ public void renameView(RenameTableRequest request) {
catalogHandlerUtils().renameView(viewCatalog, request);
}
- private @NonNull LoadTableResponse filterResponseToSnapshots(
+ @VisibleForTesting
+ @NonNull LoadTableResponse filterResponseToSnapshots(
LoadTableResponse loadTableResponse, String snapshots) {
if (snapshots == null || snapshots.equalsIgnoreCase(SNAPSHOTS_ALL)) {
return loadTableResponse;
} else if (snapshots.equalsIgnoreCase(SNAPSHOTS_REFS)) {
TableMetadata metadata = loadTableResponse.tableMetadata();
- Set<Long> referencedSnapshotIds =
- metadata.refs().values().stream()
- .map(SnapshotRef::snapshotId)
- .collect(Collectors.toSet());
-
+ // suppressHistoricalSnapshots() drops snapshots not referenced by any
branch/tag without
+ // recording a MetadataUpdate, so metadataLocation() survives the
filter. This mirrors
+ // org.apache.iceberg.rest.CatalogHandlers#loadTable's REFS case in
Iceberg core; using
+ // removeSnapshotsIf() here instead would record a change and force
metadataLocation() to
+ // null (TableMetadata requires an empty change list to claim a
persisted location), even
+ // though nothing was actually written to disk.
TableMetadata filteredMetadata =
- metadata.removeSnapshotsIf(s ->
!referencedSnapshotIds.contains(s.snapshotId()));
+ TableMetadata.buildFrom(metadata)
+ .withMetadataLocation(metadata.metadataFileLocation())
Review Comment:
Don't think we can ignore it:
https://github.com/apache/iceberg/blob/apache-iceberg-1.11.0/core/src/main/java/org/apache/iceberg/TableMetadata.java#L974-L1011
Per this, I think we need to manually set it, so this is correct.
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