amogh-jahagirdar commented on code in PR #10861:
URL: https://github.com/apache/iceberg/pull/10861#discussion_r1704575946
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core/src/main/java/org/apache/iceberg/TableMetadata.java:
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@@ -1015,6 +1015,11 @@ public Builder upgradeFormatVersion(int
newFormatVersion) {
"Cannot downgrade v%s table to v%s",
formatVersion,
newFormatVersion);
+ Preconditions.checkArgument(
+ newFormatVersion <= formatVersion + 1,
+ "Cannot skip format version(s) to upgrade v%s table to v%s",
+ formatVersion,
+ newFormatVersion);
Review Comment:
> My only goal here would be to make sure that we don't support 2 different
upgrade paths.
Thanks for this clarification, that makes sense to me. Having a single
upgrade path makes it easier to rationalize about any issues that come up for
an update (we don't have to think about "Oh does X happen when it's 1 to 3
directly or something else". It's a single path and so in case of any issues it
must be at some specific point in the path).
I think I'm overall good with that, as long as we can keep the combinatorics
to a minimum for testing. Which I think your strategy is as good as it gets?
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