rdblue commented on a change in pull request #2055:
URL: https://github.com/apache/iceberg/pull/2055#discussion_r555259707
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File path: site/docs/spec.md
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@@ -480,6 +499,8 @@ Table metadata consists of the following fields:
| _optional_ | _optional_ | **`current-snapshot-id`**| `long` ID of the
current table snapshot. |
| _optional_ | _optional_ | **`snapshots`**| A list of valid snapshots. Valid
snapshots are snapshots for which all data files exist in the file system. A
data file must not be deleted from the file system until the last snapshot in
which it was listed is garbage collected. |
| _optional_ | _optional_ | **`snapshot-log`**| A list (optional) of timestamp
and snapshot ID pairs that encodes changes to the current snapshot for the
table. Each time the current-snapshot-id is changed, a new entry should be
added with the last-updated-ms and the new current-snapshot-id. When snapshots
are expired from the list of valid snapshots, all entries before a snapshot
that has expired should be removed. |
+| _optional_ | _optional_ | **`sort-orders`**| A list of sort orders, stored
as full sort order objects. |
+| _optional_ | _optional_ | **`default-sort-order-id`**| Default sort order id
of the table. Note that this could be used by writers, but is not used when
reading because reads use the specs stored in manifest files. |
Review comment:
@aokolnychyi, do you think that sort order information should be
optional in v2?
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