Quanlong Huang created IMPALA-11123:
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Summary: Optimize count(*) for ORC scans
Key: IMPALA-11123
URL: https://issues.apache.org/jira/browse/IMPALA-11123
Project: IMPALA
Issue Type: Improvement
Reporter: Quanlong Huang
Assignee: Pranav Yogi Lodha
IMPALA-5036 and IMPALA-6501 added an optimisation for count(*) in Parquet and
Kudu scans that avoids materialising dummy rows. We should do something similar
for ORC.
Refer IMPALA-5036 for more details.
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