siddharthteotia commented on a change in pull request #6918:
URL: https://github.com/apache/incubator-pinot/pull/6918#discussion_r632812214
##########
File path:
pinot-segment-local/src/test/java/org/apache/pinot/segment/local/recordtransformer/ComplexTypeTransformerTest.java
##########
@@ -237,4 +238,76 @@ public void testUnnestCollection() {
next = itr.next();
Assert.assertEquals("v2", next.getValue("array.a"));
}
+
+ @Test
+ public void testConvertCollectionToString() {
+ // json convert inner collections
+ // {
+ // "array":[
+ // {
+ // "array1":[
+ // {
+ // "b":"v1"
+ // }
+ // ]
+ // }
+ // ]
+ // }
+ // is converted to
+ // [{
+ // "array.array1":"[
+ // {
+ // "b":"v1"
+ // }
+ // ]"
+ // }]
+ ComplexTypeTransformer transformer = new
ComplexTypeTransformer(Arrays.asList("array"), ".");
+ GenericRow genericRow = new GenericRow();
+ Map<String, Object> map = new HashMap<>();
+ Object[] array1 = new Object[1];
+ array1[0] = ImmutableMap.of("b", "v1");
+ map.put("array1", array1);
+ Object[] array = new Object[1];
+ array[0] = map;
+ genericRow.putValue("array", array);
+ transformer.transform(genericRow);
+ Assert.assertNotNull(genericRow.getValue(GenericRow.MULTIPLE_RECORDS_KEY));
+ Collection<GenericRow> collection = (Collection<GenericRow>)
genericRow.getValue(GenericRow.MULTIPLE_RECORDS_KEY);
+ GenericRow row = collection.iterator().next();
+ Assert.assertTrue(row.getValue("array.array1") instanceof String);
+
+ // primitive array not converted
Review comment:
The rules aren't clear. As per the design doc (in the Collection
handling section), if collection unnesting rule is not applied on a collection,
then it will use JSON serialization rule right?
So why are we differentiating now on primitive collection v/s collection of
non scalars ?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org
For additional commands, e-mail: commits-h...@pinot.apache.org
