RussellSpitzer commented on code in PR #10861:
URL: https://github.com/apache/iceberg/pull/10861#discussion_r1717565669
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core/src/main/java/org/apache/iceberg/TableMetadata.java:
##########
@@ -1004,24 +1004,28 @@ private Builder setInitialFormatVersion(int
newFormatVersion) {
return this;
}
- public Builder upgradeFormatVersion(int newFormatVersion) {
+ public Builder upgradeFormatVersion(int targetFormatVersion) {
Preconditions.checkArgument(
- newFormatVersion <= SUPPORTED_TABLE_FORMAT_VERSION,
+ targetFormatVersion <= SUPPORTED_TABLE_FORMAT_VERSION,
"Cannot upgrade table to unsupported format version: v%s (supported:
v%s)",
- newFormatVersion,
+ targetFormatVersion,
SUPPORTED_TABLE_FORMAT_VERSION);
Preconditions.checkArgument(
- newFormatVersion >= formatVersion,
+ targetFormatVersion >= formatVersion,
"Cannot downgrade v%s table to v%s",
formatVersion,
- newFormatVersion);
+ targetFormatVersion);
- if (newFormatVersion == formatVersion) {
+ if (targetFormatVersion == formatVersion) {
return this;
}
- this.formatVersion = newFormatVersion;
- changes.add(new MetadataUpdate.UpgradeFormatVersion(newFormatVersion));
+ // register incremental version changes separately to ensure all upgrade
requirements are met
+ for (int version = formatVersion + 1; version <= targetFormatVersion;
version++) {
+ changes.add(new MetadataUpdate.UpgradeFormatVersion(version));
Review Comment:
@leangjonathan I think the stepwise can be implemented on the upgrade itself
rather than in our test framework. So if a user does Update 1 -> 3 on the back
end we can do 1 -> 2 -> 3 so we necessarily would go through all the steps. I
think we are ok just doing
N -> Latest and N -> N+1
The N+1 just for helping us track down stepwise pieces that are broken.
Although technically if all the n -> n+1 upgrades work the n -> latest should
also work if we implement it correctly.
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