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Posted to issues-all@impala.apache.org by "Yu-Wen Lai (Jira)" <ji...@apache.org> on 2021/10/08 23:43:00 UTC

[jira] [Created] (IMPALA-10958) Decouple getConstraintsInformation from hive.ql.metadata.Table

Yu-Wen Lai created IMPALA-10958:
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             Summary: Decouple getConstraintsInformation from hive.ql.metadata.Table
                 Key: IMPALA-10958
                 URL: https://issues.apache.org/jira/browse/IMPALA-10958
             Project: IMPALA
          Issue Type: Improvement
          Components: Frontend
            Reporter: Yu-Wen Lai
            Assignee: Yu-Wen Lai


After [HIVE-22782|http://issues.apache.org/jira/browse/HIVE-22782], ql.metadata.Table object has no methods to set PrimaryKeyInfo and ForeignKeyInfo alone. However, we call these two functions In DescribeResultFactory to set constraints and pass the table into HiveMetadataFormatUtils. Instead of calling the methods from table, we can directly pass PrimaryKeyInfo and ForeignKeyInfo to HiveMetadataFormatUtils so that Impala won't be influenced even though the table class changes interface.

Additionally, we can get rid of ql.metadata.Table for getTableInformation altogether since it just needs metastore.api.Table internally.



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