garyli1019 commented on a change in pull request #4679:
URL: https://github.com/apache/hudi/pull/4679#discussion_r813828588
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File path:
hudi-flink/src/main/java/org/apache/hudi/configuration/FlinkOptions.java
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@@ -310,6 +318,20 @@ private FlinkOptions() {
+ "Actual value will be obtained by invoking .toString() on the
field value. Nested fields can be specified using "
+ "the dot notation eg: `a.b.c`");
+ public static final ConfigOption<String> INDEX_KEY_FIELD = ConfigOptions
+ .key(HoodieIndexConfig.BUCKET_INDEX_HASH_FIELD.key())
+ .stringType()
Review comment:
this could be a subset of primary keys. e.g. primary key could be
"id1,id2", this index key could be either "id1" "id2" "id1,id2".
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