szehon-ho commented on code in PR #4637:
URL: https://github.com/apache/iceberg/pull/4637#discussion_r865163707
##########
core/src/test/java/org/apache/iceberg/TestMetadataTableScans.java:
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@@ -550,6 +550,119 @@ public void testDeleteFilesTableSelection() throws
IOException {
Assert.assertEquals(expected, scan.schema().asStruct());
}
+ @Test
+ public void testPartitionSpecEvolutionAdditive() {
+ preparePartitionedTable();
+
+ // Change spec and add two data files
+ table.updateSpec()
+ .addField("id")
+ .commit();
+ PartitionSpec newSpec = table.spec();
+
+ // Add two data files with new spec
+ PartitionKey data10Key = new PartitionKey(newSpec, table.schema());
+ data10Key.set(0, 0); // data=0
+ data10Key.set(1, 10); // id=10
+ DataFile data10 = DataFiles.builder(newSpec)
+ .withPath("/path/to/data-10.parquet")
+ .withRecordCount(10)
+ .withFileSizeInBytes(10)
+ .withPartition(data10Key)
+ .build();
+ PartitionKey data11Key = new PartitionKey(newSpec, table.schema());
+ data11Key.set(0, 1); // data=0
+ data10Key.set(1, 11); // id=11
+ DataFile data11 = DataFiles.builder(newSpec)
+ .withPath("/path/to/data-11.parquet")
+ .withRecordCount(10)
+ .withFileSizeInBytes(10)
+ .withPartition(data11Key)
+ .build();
+
+ table.newFastAppend().appendFile(data10).commit();
+ table.newFastAppend().appendFile(data11).commit();
Review Comment:
Yea , it messes up the test a little bit as it combines into one manifest
(as the test is a bit low level and depends on how many manifestReadTask get
spawned)
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