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https://issues.apache.org/jira/browse/DRILL-2330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15413801#comment-15413801
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Dechang Gu commented on DRILL-2330:
-----------------------------------
The Queries are added to the Drill Perf Test Framework, and test on 1.8.0
master shows the following results:
Env: UCS micro cluster MapR 5.1.0.37549.GA, TPCDS SF100 parquet files, Apache
Drill 1.8.0 Master (gitid aaf220f)
Query time (ms)
tpcds query Run 1 Run 2 Run 3
12 DRILL-4525 Validataion Error
20 DRILL-4525 Validataion Error
47 65,515 27,391 26,247
51 DRILL-4811 IllegalArgument
53 7,722 4,310 3,518
57 22,968 15,956 15,578
63 7,292 4,012 3,526
89 5,592 3,777 3,585
98 DRILL-4525 Validataion Error
> Add support for nested aggregate expressions for window aggregates
> ------------------------------------------------------------------
>
> Key: DRILL-2330
> URL: https://issues.apache.org/jira/browse/DRILL-2330
> Project: Apache Drill
> Issue Type: Improvement
> Components: Query Planning & Optimization
> Affects Versions: 0.8.0
> Reporter: Abhishek Girish
> Assignee: Gautam Kumar Parai
> Fix For: 1.8.0
>
> Attachments: drillbit.log
>
>
> Aggregate expressions currently cannot be nested.
> *The following query fails to validate:*
> {code:sql}
> select avg(sum(i_item_sk)) from item;
> {code}
> Error:
> Query failed: SqlValidatorException: Aggregate expressions cannot be nested
> Log attached.
> Reference: TPCDS queries (20, 63, 98, ...) fail to execute.
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