openinx commented on a change in pull request #1704:
URL: https://github.com/apache/iceberg/pull/1704#discussion_r533268463
##########
File path:
flink/src/test/java/org/apache/iceberg/flink/actions/TestRewriteDataFilesAction.java
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@@ -280,4 +290,79 @@ public void testRewriteLargeTableHasResiduals() throws
IOException {
// Assert the table records as expected.
SimpleDataUtil.assertTableRecords(icebergTableUnPartitioned, expected);
}
+
+ /**
+ * a test case to test avoid repeate compress
+ * <p>
+ * If datafile cannot be combined to CombinedScanTask with other DataFiles,
the size of the CombinedScanTask list size
+ * is 1, so we remove these CombinedScanTasks to avoid compressed repeatedly.
+ * <p>
+ * In this test case,we generated 3 data files and set targetSizeInBytes
greater than the largest file size so that it
+ * cannot be combined a CombinedScanTask with other datafiles. The datafile
with the largest file size will not be
+ * compressed.
+ *
+ * @throws IOException IOException
+ */
+ @Test
+ public void testRewriteAvoidRepeateCompress() throws IOException {
+ if (!format.equals(FileFormat.ORC)) {
Review comment:
Use `Assume.assumeFalse("ORC does not support getting length when file
is opening", format.equals(FileFormat.ORC));`
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