szehon-ho commented on code in PR #6621:
URL: https://github.com/apache/iceberg/pull/6621#discussion_r1081718764
##########
hive-metastore/src/test/java/org/apache/iceberg/hive/TestHiveCatalog.java:
##########
@@ -328,6 +329,140 @@ public void testCreateTableCustomSortOrder() throws
Exception {
}
}
+ @Test
+ public void testAlterTableOwner() throws IOException, TException {
+ alterTableAndVerifyOwner(
+ DB_NAME,
+ "tbl_alter_owner_1",
+ ImmutableMap.of(HiveCatalog.HMS_TABLE_OWNER, "some_owner"),
+ ImmutableMap.of(HiveCatalog.HMS_TABLE_OWNER, "some_other_owner"),
+ "some_owner",
+ "some_other_owner");
+ alterTableAndVerifyOwner(
+ DB_NAME,
+ "tbl_alter_owner_2",
+ ImmutableMap.of(),
+ ImmutableMap.of(HiveCatalog.HMS_TABLE_OWNER, "another_owner"),
+ UserGroupInformation.getCurrentUser().getUserName(),
+ "another_owner");
+ alterTableAndVerifyOwner(
+ DB_NAME,
+ "tbl_alter_owner_noop_1",
+ ImmutableMap.of(HiveCatalog.HMS_TABLE_OWNER, "some_owner"),
+ ImmutableMap.of(),
+ "some_owner",
+ "some_owner");
+ alterTableAndVerifyOwner(
+ DB_NAME,
+ "tbl_alter_owner_noop_2",
+ ImmutableMap.of(HiveCatalog.HMS_TABLE_OWNER, "some_owner"),
+ ImmutableMap.of("unrelated_prop", "val"),
+ "some_owner",
+ "some_owner");
+ alterTableAndVerifyOwner(
+ DB_NAME,
+ "tbl_alter_owner_noop_3",
+ ImmutableMap.of(),
+ ImmutableMap.of(),
+ UserGroupInformation.getCurrentUser().getUserName(),
+ UserGroupInformation.getCurrentUser().getUserName());
+ }
+
+ private void alterTableAndVerifyOwner(
Review Comment:
Nit: I think in most tests, we put the private at end of file? So the
```@Test``` are all in the top and easier to find.
##########
hive-metastore/src/main/java/org/apache/iceberg/hive/HiveTableOperations.java:
##########
@@ -494,6 +494,17 @@ private void setHmsTableParameters(
// remove any props from HMS that are no longer present in Iceberg table
props
obsoleteProps.forEach(parameters::remove);
+ // altering owner
+ if (metadata.properties().get(HiveCatalog.HMS_TABLE_OWNER) != null) {
+ tbl.setOwner(metadata.properties().get(HiveCatalog.HMS_TABLE_OWNER));
+ }
+
+ // dropping owner: instead of leaving the owner blank/null, the owner will
be
+ // default to whoever is making the current drop operation
+ if (obsoleteProps.contains(HiveCatalog.HMS_TABLE_OWNER)) {
Review Comment:
Also too don't know of the use-case, but makes sense to me to set it to null
here.
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