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Posted to issues@drill.apache.org by "Mehant Baid (JIRA)" <ji...@apache.org> on 2014/06/03 20:08:02 UTC
[jira] [Updated] (DRILL-502) Avg function against decimal data
returns incorrect result from drill
[ https://issues.apache.org/jira/browse/DRILL-502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mehant Baid updated DRILL-502:
------------------------------
Component/s: Functions - Drill
> 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
> Components: Functions - Drill
> 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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