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Posted to issues@impala.apache.org by "Taras Bobrovytsky (JIRA)" <ji...@apache.org> on 2017/07/12 01:31:00 UTC

[jira] [Created] (IMPALA-5650) COUNT(*) optimization causes a crash when legacy aggregation is enabled

Taras Bobrovytsky created IMPALA-5650:
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             Summary: COUNT(*) optimization causes a crash when legacy aggregation is enabled
                 Key: IMPALA-5650
                 URL: https://issues.apache.org/jira/browse/IMPALA-5650
             Project: IMPALA
          Issue Type: Bug
          Components: Backend
    Affects Versions: Impala 2.10.0
            Reporter: Taras Bobrovytsky
            Assignee: Taras Bobrovytsky
            Priority: Blocker


Steps to reproduce:
# Start Impala with the following flag: -enable_partitioned_aggregation=false
# Run the following query: {code} select count(*) from tpch_parquet.lineitem {code}

Impala hits a DCHECK:
{code}
aggregation-node.cc:669] Check failed: false bad aggregate operator: 6
{code}




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