[jira] [Created] (FLINK-11769) The estimateDataTypesSize method in FlinkRelNode causes NPE for Multiset

[Shang Yuanchun (Jira)]

Xingcan Cui created FLINK-11769:
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             Summary: The estimateDataTypesSize method in FlinkRelNode causes NPE for Multiset
                 Key: FLINK-11769
                 URL: https://issues.apache.org/jira/browse/FLINK-11769
             Project: Flink
          Issue Type: Bug
          Components: Table API & SQL
    Affects Versions: 1.7.2, 1.6.4
            Reporter: Xingcan Cui


As raised in [this thread|https://lists.apache.org/thread.html/3a93723d2e74ae667a9aeb7d6ff28955f3ef79b5f20b4848b67fe709@%3Cuser.flink.apache.org%3E]. The {{estimateDataTypesSize}} method in {{FlinkRelNode}} causes NPE for a {{Multiset<Map<String, String>>}} field type. Maybe the {{keyType}} or the {{valueType}} is empty in that case.



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