Rahul Challapalli created DRILL-5146:
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Summary: Unnecessary spilling to disk by sort when we only have
5000 rows with one column
Key: DRILL-5146
URL: https://issues.apache.org/jira/browse/DRILL-5146
Project: Apache Drill
Issue Type: Bug
Components: Execution - Relational Operators
Reporter: Rahul Challapalli
git.commit.id.abbrev=cf2b7c7
The below query spills to disk for the sort. The dataset contains 5000 files
and each file contains a single record.
{code}
select * from dfs.`/drill/testdata/resource-manager/5000files/text` order by
columns[1];
{code}
Enviironment :
{code}
DRILL_MAX_DIRECT_MEMORY="16G"
DRILL_MAX_HEAP="4G"
{code}
I attached the dataset, logs and the profile
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