chenjian2664 commented on code in PR #13301:
URL: https://github.com/apache/iceberg/pull/13301#discussion_r2439768674
##########
core/src/test/java/org/apache/iceberg/TestScansAndSchemaEvolution.java:
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@@ -111,6 +118,133 @@ public void testPartitionSourceRename() throws
IOException {
tasks = Lists.newArrayList(table.newScan().filter(Expressions.equal("p",
"one")).planFiles());
assertThat(tasks).hasSize(1);
+
+ // create a new commit
+ table.newAppend().appendFile(createDataFile("three")).commit();
+
+ // use fiter with previous partition name
+ tasks =
+ Lists.newArrayList(
+ table
+ .newScan()
+ .useSnapshot(firstSnapshotId)
+ .filter(Expressions.equal("part", "one"))
+ .planFiles());
+
+ assertThat(tasks).hasSize(1);
+ }
+
+ @TestTemplate
+ public void testPartitionSourceDrop() throws IOException {
+ Table table = TestTables.create(temp, "test", SCHEMA, SPEC, formatVersion);
+
+ DataFile fileOne = createDataFile("one");
+ DataFile fileTwo = createDataFile("two");
+
+ table.newAppend().appendFile(fileOne).appendFile(fileTwo).commit();
+ long firstSnapshotId = table.currentSnapshot().snapshotId();
+
+ table.updateSpec().addField("id").commit();
+
+ List<FileScanTask> tasks =
+ Lists.newArrayList(
+
table.newScan().filter(Expressions.not(Expressions.isNull("id"))).planFiles());
+
+ assertThat(tasks).hasSize(2);
+
+ DataFile fileThree = createDataFile("three", table.schema(), table.spec());
+ table.newAppend().appendFile(fileThree).commit();
+
+ // remove one field from spec and drop the column
+ table.updateSpec().removeField("id").commit();
+ table.updateSchema().deleteColumn("id").commit();
+
+ List<FileScanTask> tasksAtFirstSnapshotId =
+ Lists.newArrayList(
+ table
+ .newScan()
+ .useSnapshot(firstSnapshotId)
+ .filter(Expressions.not(Expressions.isNull("id")))
+ .planFiles());
+
+ assertThat(
+ tasksAtFirstSnapshotId.stream()
+ .map(ContentScanTask::file)
+ .map(ContentFile::location)
+ .collect(Collectors.toList()))
+ .isEqualTo(
+ tasks.stream()
+ .map(ContentScanTask::file)
+ .map(ContentFile::location)
+ .collect(Collectors.toList()));
+ }
+
+ @TestTemplate
+ public void testColumnRename() throws IOException {
+ Table table = TestTables.create(temp, "test", SCHEMA, SPEC, formatVersion);
+
+ DataFile fileOne = createDataFile("one");
+ DataFile fileTwo = createDataFile("two");
+
+ table.newAppend().appendFile(fileOne).appendFile(fileTwo).commit();
+ long firstSnapshotId = table.currentSnapshot().snapshotId();
+
+ table.updateSchema().renameColumn("data", "renamed_data").commit();
+
+ DataFile fileThree = createDataFile("three", table.schema(), table.spec());
+ table.newAppend().appendFile(fileThree).commit();
+ long secondSnapshotId = table.currentSnapshot().snapshotId();
+
+ // generate a new commit
+ DataFile fileFour = createDataFile("four", table.schema(), table.spec());
+ table.newAppend().appendFile(fileFour).commit();
+
+ // running successfully with the new filter on previous column name
+ List<FileScanTask> tasks =
+ Lists.newArrayList(
+ table
+ .newScan()
+ .useSnapshot(firstSnapshotId)
Review Comment:
Yes, it's intentional that testing time travel works correctly when the
predicate exists only in earlier snapshots.
But I can add a case to exercise the current snapshot if you think it is
necessary
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