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Test translation of view with namesake column aliases which are differing in case #11240

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findepi merged 1 commit into from
Mar 9, 2022
Merged

Test translation of view with namesake column aliases which are differing in case #11240

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26 changes: 26 additions & 0 deletions .../trino-product-tests/src/main/java/io/trino/tests/product/hive/AbstractTestHiveViews.java
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Original file line number Diff line number Diff line change
Expand Up @@ -664,6 +664,32 @@ public void testViewReferencingHiveAndIcebergTables()
onHive().executeQuery("DROP TABLE default.view_iceberg_table");
}

@Test(groups = HIVE_VIEWS)
public void testViewWithColumnAliasesDifferingInCase()
{
onHive().executeQuery("DROP TABLE IF EXISTS test_hive_namesake_column_name_a");
onHive().executeQuery("DROP TABLE IF EXISTS test_hive_namesake_column_name_b");
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onHive().executeQuery("CREATE TABLE test_hive_namesake_column_name_a(some_id string)");
onHive().executeQuery("CREATE TABLE test_hive_namesake_column_name_b(SOME_ID string)");
onHive().executeQuery("INSERT INTO TABLE test_hive_namesake_column_name_a VALUES ('hive')");
onHive().executeQuery("INSERT INTO TABLE test_hive_namesake_column_name_b VALUES (' hive ')");

onHive().executeQuery("DROP VIEW IF EXISTS test_namesake_column_names_view");
onHive().executeQuery("" +
"CREATE VIEW test_namesake_column_names_view AS \n" +
" SELECT a.some_id FROM test_hive_namesake_column_name_a a \n" +
" LEFT JOIN (SELECT trim(SOME_ID) AS SOME_ID FROM test_hive_namesake_column_name_b) b \n" +
" ON a.some_id = b.some_id \n" +
" WHERE a.some_id != ''");
assertViewQuery(
"SELECT * FROM test_namesake_column_names_view",
queryAssert -> queryAssert.containsOnly(row("hive")));

onHive().executeQuery("DROP TABLE test_hive_namesake_column_name_a");
onHive().executeQuery("DROP TABLE test_hive_namesake_column_name_b");
onHive().executeQuery("DROP VIEW test_namesake_column_names_view");
}

protected static void assertViewQuery(String query, Consumer<QueryAssert> assertion)
{
// Ensure Hive and Presto view compatibility by comparing the results
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