aokolnychyi commented on a change in pull request #3199:
URL: https://github.com/apache/iceberg/pull/3199#discussion_r718944053
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File path: core/src/main/java/org/apache/iceberg/BaseOverwriteFiles.java
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@@ -127,8 +147,29 @@ protected void validate(TableMetadata base) {
}
}
- if (conflictDetectionFilter != null && base.currentSnapshot() != null) {
- validateAddedDataFiles(base, startingSnapshotId,
conflictDetectionFilter, caseSensitive);
+
+ if (validateNewDataFiles && base.currentSnapshot() != null) {
+ validateAddedDataFiles(base, startingSnapshotId,
conflictDetectionFilter(), caseSensitive);
+ }
+
+ if (validateNewDeleteFiles && base.currentSnapshot() != null) {
+ if (rowFilter() != Expressions.alwaysFalse()) {
+ validateNoNewDeleteFiles(base, startingSnapshotId,
conflictDetectionFilter(), caseSensitive);
+ } else if (deletedDataFiles.size() > 0) {
Review comment:
I interpret it like this: call `validateNoNewDeletesForDataFiles` iff we
replace only individual files as it is more precise than checking if there are
any deletes matching the filter. Call `validateNewDeleteFiles` in all other
cases (like there are both individual files replaced and the overwrite filter
is set). When calling `validateNewDeleteFiles`, we can use `rowFilter()` as the
conflict detection iff we don't replace any individual files (i.e.
`deletedDataFiles.isEmpty()`).
In my view, `validateNoNewDeleteFiles` is a stronger guarantee than
`validateNoNewDeletesForDataFiles`.
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