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https://issues.apache.org/jira/browse/IMPALA-8721?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-8721.
-----------------------------------
Fix Version/s: Impala 4.0
Resolution: Fixed
> Wrong result when Impala reads a Hive written parquet TimeStamp column
> ----------------------------------------------------------------------
>
> Key: IMPALA-8721
> URL: https://issues.apache.org/jira/browse/IMPALA-8721
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Reporter: Abhishek Rawat
> Assignee: Tim Armstrong
> Priority: Critical
> Labels: Interoperability, correctness, hive, impala, parquet,
> timestamp
> Fix For: Impala 4.0
>
>
>
> Easy to repro on latest upstream:
> {code:java}
> hive> create table t1_hive(c1 timestamp) stored as parquet;
> hive> insert into t1_hive values('2009-03-09 01:20:03.600000000');
> hive> select * from t1_hive;
> OK
> 2009-03-09 01:20:03.6
> [localhost:21000] default> invalidate metadata t1_hive;
> [localhost:21000] default> select * from t1_hive;
> Query: select * from t1_hive
> Query submitted at: 2019-06-24 09:55:36 (Coordinator:
> http://optimus-prime:25000)
> Query progress can be monitored at:
> http://optimus-prime:25000/query_plan?query_id=b34f85cb5da29c26:d4dfcb2400000000
> +-------------------------------+
> | c1 |
> +-------------------------------+
> | 2009-03-09 09:20:03.600000000 | <<<<<UTC
> +-------------------------------+
> bin/start-impala-cluster.py
> --impalad_args='-convert_legacy_hive_parquet_utc_timestamps=true'
> [localhost:21000] default> select * from t1_hive;
> Query: select * from t1_hive
> Query submitted at: 2019-06-24 10:00:22 (Coordinator:
> http://optimus-prime:25000)
> Query progress can be monitored at:
> http://optimus-prime:25000/query_plan?query_id=d5428bb21fb259b9:7b10703400000000
> +-------------------------------+
> | c1 |
> +-------------------------------+
> | 2009-03-09 02:20:03.600000000 |. <<<<<<PST8PDT
> +-------------------------------+
>
> {code}
>
> This issue is causing testcase test_hive_impala_interop to fail. Untill this
> issue is fixed, the testcase will be updated to not include a timestamp
> column. The test case should be updated to include a timestamp column once
> this issue is fixed.
>
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