nastra commented on code in PR #9131:
URL: https://github.com/apache/iceberg/pull/9131#discussion_r1415055875
##########
spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java:
##########
@@ -425,16 +426,56 @@ public void
testSnapshotSelectionByBranchWithSchemaChange() throws IOException {
// Deleting a column to indicate schema change
table.updateSchema().deleteColumn("data").commit();
- // The data should have the deleted column as it was captured in an
earlier snapshot.
- Dataset<Row> deletedColumnBranchSnapshotResult =
- spark.read().format("iceberg").option("branch",
"branch").load(tableLocation);
- List<SimpleRecord> deletedColumnBranchSnapshotRecords =
- deletedColumnBranchSnapshotResult
- .orderBy("id")
- .as(Encoders.bean(SimpleRecord.class))
- .collectAsList();
- Assert.assertEquals(
- "Current snapshot rows should match", expectedRecords,
deletedColumnBranchSnapshotRecords);
+ // The data should not have the deleted column
+ Assertions.assertThat(
+ spark
+ .read()
+ .format("iceberg")
+ .option("branch", "branch")
+ .load(tableLocation)
+ .orderBy("id")
+ .collectAsList())
+ .containsExactly(
+ new GenericRowWithSchema(new Object[] {1}, null),
+ new GenericRowWithSchema(new Object[] {2}, null),
+ new GenericRowWithSchema(new Object[] {3}, null));
+
+ // re-introducing the column should not let the data re-appear
+ table.updateSchema().addColumn("data", Types.StringType.get()).commit();
+
+ Assertions.assertThat(
+ spark
+ .read()
+ .format("iceberg")
+ .option("branch", "branch")
+ .load(tableLocation)
+ .orderBy("id")
+ .as(Encoders.bean(SimpleRecord.class))
+ .collectAsList())
+ .containsExactly(
+ new SimpleRecord(1, null), new SimpleRecord(2, null), new
SimpleRecord(3, null));
+
+ // writing new records into the branch should work with the re-introduced
column
Review Comment:
I've moved this to a separate test and also used a different schema
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