ajantha-bhat commented on code in PR #6695:
URL: https://github.com/apache/iceberg/pull/6695#discussion_r1090180806
##########
spark/v3.3/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/TestRewriteManifestsProcedure.java:
##########
@@ -78,6 +78,28 @@ public void testRewriteLargeManifests() {
"Must have 4 manifests", 4,
table.currentSnapshot().allManifests(table.io()).size());
}
+ @Test
+ public void testRewriteManifestsNoOp() {
+ sql(
+ "CREATE TABLE %s (id bigint NOT NULL, data string) USING iceberg
PARTITIONED BY (data)",
+ tableName);
+ sql("INSERT INTO TABLE %s VALUES (1, 'a'), (2, 'b'), (3, 'c'), (4, 'd')",
tableName);
+
+ Table table = validationCatalog.loadTable(tableIdent);
+
+ Assert.assertEquals(
+ "Must have 1 manifest", 1,
table.currentSnapshot().allManifests(table.io()).size());
+
+ List<Object[]> output = sql("CALL %s.system.rewrite_manifests('%s')",
catalogName, tableIdent);
+ // should not rewrite any manifests for no-op (output of rewrite is same
as before and after)
+ assertEquals("Procedure output must match", ImmutableList.of(row(0, 0)),
output);
Review Comment:
the result will be (1,1) without this PR.
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