rdblue commented on code in PR #12672:
URL: https://github.com/apache/iceberg/pull/12672#discussion_r2019428750
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core/src/main/java/org/apache/iceberg/SnapshotProducer.java:
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@@ -283,11 +285,26 @@ public Snapshot apply() {
throw new RuntimeIOException(e, "Failed to write manifest list file");
}
- Long addedRows = null;
- Long lastRowId = null;
- if (base.rowLineageEnabled()) {
- addedRows = calculateAddedRows(manifests);
- lastRowId = base.nextRowId();
+ Long assignedRows = null;
+ if (base.formatVersion() >= 3) {
+ assignedRows = writer.nextRowId() - base.nextRowId();
Review Comment:
This is different because the added rows may be different. This accumulates
the `added_row_count` for all manifests that were assigned a `first-row-id`,
not all manifests. That distinction is why I called this `assigned` instead of
`added`.
I also need to look into how we handle upgraded tables. When writing the
manifest list, we will always assign a `first-row-id` for manifests that do not
have one in v3. I think that leaves a gap where we will assign a `first-row-id`
to a manifest that has `existing` data files and could potentially skip them.
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