jaimin-shah commented on a change in pull request #862: Add support for
composite key
URL: https://github.com/apache/incubator-hudi/pull/862#discussion_r327502159
##########
File path:
hudi-utilities/src/main/java/org/apache/hudi/utilities/keygen/TimestampBasedKeyGenerator.java
##########
@@ -102,7 +109,12 @@ public HoodieKey getKey(GenericRecord record) {
"Unexpected type for partition field: " +
partitionVal.getClass().getName());
}
- return new HoodieKey(DataSourceUtils.getNestedFieldValAsString(record,
recordKeyField),
+ return new HoodieKey(
+ fields.stream()
+ .map(
+ recordKeyField ->
+ DataSourceUtils.getNestedFieldValAsString(record,
recordKeyField))
+ .collect(Collectors.joining(".")),
Review comment:
@bvaradar By ambiguity I meant two different records having same key. For
example US, .A => US..A and US. , A => US..A Keeping recordKeyField as part of
key resolves this. Although I agree these kind of cases are quite rare.
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