vvysotskyi commented on a change in pull request #2048: DRILL-7429: Wrong
column order when selecting complex data using Hive storage plugin
URL: https://github.com/apache/drill/pull/2048#discussion_r403729644
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File path:
contrib/storage-hive/core/src/test/java/org/apache/drill/exec/hive/complex_types/TestHiveStructs.java
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@@ -234,6 +240,28 @@ public void primitiveStruct() throws Exception {
.go();
}
+ @Test // DRILL-7429
+ public void testCorrectColumnOrdering() throws Exception {
+ String sql = "SELECT t.str_n0 a, rid b FROM hive.struct_tbl t LIMIT 1";
+ DirectRowSet directRowSet = queryBuilder().sql(sql).rowSet();
+ BatchSchema fields;
+ try {
+ fields = directRowSet.batchSchema();
+ } finally {
+ directRowSet.clear();
+ }
+
+ assertThat(fields.getFieldCount(), is(2));
Review comment:
We also have `RowSetComparison` class, which allows comparing expected and
actual row sets, including their schema.
Or if you don't want to populate row set with expected data, you may use the
`schemaBaseLine()` method from `TestBuilder` to validate query schema only.
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