RussellSpitzer commented on code in PR #9803:
URL: https://github.com/apache/iceberg/pull/9803#discussion_r1508068633
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spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/actions/TestRewriteDataFilesAction.java:
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@@ -1463,6 +1465,148 @@ public void testSnapshotProperty() {
assertThat(table.currentSnapshot().summary()).containsKeys(commitMetricsKeys);
}
+ @Test
+ public void testBinPackRewriterWithSpecificUnparitionedOutputSpec() {
+ Table table = createTable(10);
+ shouldHaveFiles(table, 10);
+ // to be used for rewrite
+ int outputSpecId = table.spec().specId();
+ // create multiple partition specs with different commit
+ table.updateSpec().addField(Expressions.truncate("c2", 2)).commit();
+
+ long dataSizeBefore = testDataSize(table);
+ long count = currentData().size();
+
+ RewriteDataFiles.Result result =
+ basicRewrite(table)
+ .option(RewriteDataFiles.OUTPUT_SPEC_ID,
String.valueOf(outputSpecId))
+ .option(SizeBasedFileRewriter.REWRITE_ALL, "true")
+ .binPack()
+ .execute();
+
+ assertThat(result.rewrittenBytesCount()).isEqualTo(dataSizeBefore);
+ assertThat(currentData().size()).isEqualTo(count);
+ shouldRewriteDataFilesWithPartitionSpec(table, outputSpecId);
+ }
+
+ @Test
+ public void testBinPackRewriterWithSpecificOutputSpec() {
+ Table table = createTable(10);
+ shouldHaveFiles(table, 10);
+ // to be used for rewrite back to original un-partitioned spec
+ int outputSpecId = table.spec().specId();
+ // create multiple partition specs with different commit
+ table.updateSpec().addField(Expressions.truncate("c2", 2)).commit();
+ table.updateSpec().addField(Expressions.bucket("c3", 2)).commit();
+
+ long dataSizeBefore = testDataSize(table);
+ long count = currentData().size();
+
+ RewriteDataFiles.Result result =
+ basicRewrite(table)
+ .option(RewriteDataFiles.OUTPUT_SPEC_ID,
String.valueOf(outputSpecId))
+ .option(SizeBasedFileRewriter.REWRITE_ALL, "true")
+ .binPack()
+ .execute();
+
+ assertThat(result.rewrittenBytesCount()).isEqualTo(dataSizeBefore);
+ assertThat(currentData().size()).isEqualTo(count);
+ shouldRewriteDataFilesWithPartitionSpec(table, outputSpecId);
+ }
+
+ @Test
+ public void testBinpackRewriteWithInvalidOutputSpecId() {
+ Table table = createTable(10);
+ shouldHaveFiles(table, 10);
+ int previousSpecId = table.spec().specId();
+ // simulate multiple partition specs with different commit
Review Comment:
In general we don't leave comments like this, i think the code is self
evident here
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