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https://issues.apache.org/jira/browse/DRILL-502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krystal updated DRILL-502:
--------------------------
Attachment: student.parquet
Student parquet file used in sql query
> Avg function against decimal data returns incorrect result from drill
> ---------------------------------------------------------------------
>
> Key: DRILL-502
> URL: https://issues.apache.org/jira/browse/DRILL-502
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.0.0
> Reporter: Krystal
> Attachments: student.parquet
>
>
> Ran the following sql query:
> 0: jdbc:drill:schema=dfs> select avg(gpa) from dfs.`student`;
> +------------+
> | EXPR$0 |
> +------------+
> | 1.999 |
> +------------+
> 1 row selected (0.22 seconds)
> The same query against the same dataset from oracle, postgres and impala
> returns value of 2.49826.
> Here is the schema of the student table:
> message pig_schema {
> optional int32 rownum;
> optional binary name;
> optional int32 age;
> optional double gpa;
> optional int64 studentnum;
> optional binary create_time;
> }
> The same avg function against int data types returns correct result.
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