You are viewing a plain text version of this content. The canonical link for it is here.

Posted to commits@hudi.apache.org by "Alexey Kudinkin (Jira)" <ji...@apache.org> on 2022/02/11 00:26:00 UTC

[jira] [Created] (HUDI-3411) Incorrect Record Key Field property Handling

Alexey Kudinkin created HUDI-3411:
-------------------------------------

             Summary: Incorrect Record Key Field property Handling
                 Key: HUDI-3411
                 URL: https://issues.apache.org/jira/browse/HUDI-3411
             Project: Apache Hudi
          Issue Type: Bug
            Reporter: Alexey Kudinkin


Currently `HoodieTableConfig#getRecordKeyFieldProp` returns a single String, even though it could contain a *list* of columns making up composite Primary Key.
{code:java}
public String getRecordKeyFieldProp() {
  return getStringOrDefault(RECORDKEY_FIELDS, HoodieRecord.RECORD_KEY_METADATA_FIELD);
} {code}
 

Most of the callers of this method are actually not handling this correctly, assuming that the Record Key is always a single field. 

NOTE: While concatenation of CPK seems like a very natural step here, special care has to be taken, since Composite PK can NOT be concatenated as strings, as this might break the uniqueness constraint. 



--
This message was sent by Atlassian Jira
(v8.20.1#820001)