pvary commented on a change in pull request #2038:
URL: https://github.com/apache/iceberg/pull/2038#discussion_r559712783
##########
File path:
mr/src/test/java/org/apache/iceberg/mr/hive/TestHiveIcebergStorageHandlerWithEngine.java
##########
@@ -256,4 +265,293 @@ public void testSelectDistinctFromTable() throws
IOException {
Assert.assertEquals(tableName, size, distinctIds);
}
}
+
+ @Test
+ public void testInsert() throws IOException {
+ Assume.assumeTrue("Tez write is not implemented yet",
executionEngine.equals("mr"));
+
+ Table table = testTables.createTable(shell, "customers",
HiveIcebergStorageHandlerTestUtils.CUSTOMER_SCHEMA,
+ fileFormat, ImmutableList.of());
+
+ // The expected query is like
+ // INSERT INTO customers VALUES (0, 'Alice'), (1, 'Bob'), (2, 'Trudy')
+ StringBuilder query = new StringBuilder().append("INSERT INTO customers
VALUES ");
+ HiveIcebergStorageHandlerTestUtils.CUSTOMER_RECORDS.forEach(record ->
query.append("(")
+ .append(record.get(0)).append(",'")
+ .append(record.get(1)).append("','")
+ .append(record.get(2)).append("'),"));
+ query.setLength(query.length() - 1);
+
+ shell.executeStatement(query.toString());
+
+ HiveIcebergTestUtils.validateData(table, new
ArrayList<>(HiveIcebergStorageHandlerTestUtils.CUSTOMER_RECORDS), 0);
+ }
+
+ @Test
+ public void testInsertFromSelect() throws IOException {
+ Assume.assumeTrue("Tez write is not implemented yet",
executionEngine.equals("mr"));
+
+ Table table = testTables.createTable(shell, "customers",
HiveIcebergStorageHandlerTestUtils.CUSTOMER_SCHEMA,
+ fileFormat, HiveIcebergStorageHandlerTestUtils.CUSTOMER_RECORDS);
+
+ shell.executeStatement("INSERT INTO customers SELECT * FROM customers");
+
+ // Check that everything is duplicated as expected
+ List<Record> records = new
ArrayList<>(HiveIcebergStorageHandlerTestUtils.CUSTOMER_RECORDS);
+ records.addAll(HiveIcebergStorageHandlerTestUtils.CUSTOMER_RECORDS);
+ HiveIcebergTestUtils.validateData(table, records, 0);
+ }
+
+ @Test
+ public void testInsertFromSelectWithOrderBy() throws IOException {
Review comment:
The first one is Map only query, the second is Map-Reduce query. So we
test both cases.
Added comments to the tests.
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