dramaticlly commented on code in PR #16263:
URL: https://github.com/apache/iceberg/pull/16263#discussion_r3221858328
##########
core/src/test/java/org/apache/iceberg/TestRowLineageAssignment.java:
##########
@@ -781,6 +781,22 @@ public void
testUpgradeAssignmentWithManifestCompaction(@TempDir File altLocatio
FILE_C.recordCount() + FILE_B.recordCount());
}
+ @Test
+ public void testRewritePreservesExistingFileFirstRowIds() {
+ table.newAppend().appendFile(FILE_A).appendFile(FILE_B).commit();
+ // FILE_A→0, FILE_B→125; nextRowId=225
Review Comment:
We ran into this in the past as well, If I understand this correctly, this
force trigger the manifest merge at the snapshot commit time wher
ManifestMergeManager kick in to reads this manifest to merge
it with existing manifests by constructs a `ManifestReader` with
`firstRowId=null`.
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