rdblue commented on a change in pull request #1097:
URL: https://github.com/apache/iceberg/pull/1097#discussion_r437568955
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File path: hive/src/test/java/org/apache/iceberg/hive/HiveTableTest.java
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@@ -240,6 +243,37 @@ public void testExistingTableUpdate() throws TException {
Assert.assertEquals(icebergColumns, hiveColumns);
}
+ @Test
+ public void testColumnTypeChangeInMetastore() throws TException {
+ Table icebergTable = catalog.loadTable(TABLE_IDENTIFIER);
+
+ Schema expectedSchema = new Schema(Types.StructType.of(
+ required(1, "id", Types.LongType.get()),
+ optional(2, "data", Types.LongType.get()),
+ optional(3, "string", Types.StringType.get()),
+ optional(4, "int", Types.IntegerType.get())).fields());
+ // Add columns with different types, then verify we could delete one
column in hive metastore
+ // as hive conf METASTORE_DISALLOW_INCOMPATIBLE_COL_TYPE_CHANGES was set
to false. If this was set to true,
+ // an InvalidOperationException would thrown in method
MetaStoreUtils#throwExceptionIfIncompatibleColTypeChange()
+ icebergTable.updateSchema()
+ .addColumn("data", Types.LongType.get())
+ .addColumn("string", Types.StringType.get())
+ .addColumn("int", Types.IntegerType.get())
+ .commit();
+
+ icebergTable = catalog.loadTable(TABLE_IDENTIFIER);
Review comment:
It isn't necessary to reload the table. The one in memory is updated
when an operation commits.
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