yihua commented on code in PR #13687:
URL: https://github.com/apache/hudi/pull/13687#discussion_r2261661598
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hudi-client/hudi-client-common/src/main/java/org/apache/hudi/table/upgrade/UpgradeDowngrade.java:
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@@ -95,6 +95,16 @@ public static boolean needsUpgrade(HoodieTableMetaClient
metaClient, HoodieWrite
throw new HoodieUpgradeDowngradeException(
String.format("Please upgrade table from version %s to %s before
upgrading to version %s.", fromTableVersion,
HoodieTableVersion.SIX.versionCode(), toWriteVersion));
}
+ // for table versions greater than or equal to six, if we are attempting
to do an upgrade and auto-upgrade is disabled
+ if (fromTableVersion.greaterThanOrEquals(HoodieTableVersion.SIX) &&
fromTableVersion.versionCode() < config.getWriteVersion().versionCode() &&
!config.autoUpgrade()) {
Review Comment:
@rahil-c and I discussed the following cases:
(1) autoUpgrade=true, `hoodie.write.table.version` / toVersion should be at
least SIX.
(2) autoUpgrade=false, existing table version has to match
`hoodie.write.table.version`, and `hoodie.write.table.version` has to be at
least SIX.
If autoUpgrade=true and `hoodie.write.table.version=SIX`, it is OK for
existing table version to be below SIX, e.g., FIVE.
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