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https://issues.apache.org/jira/browse/DRILL-8013?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Turton closed DRILL-8013.
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> Drill attempts to push "$SUM0" to JDBC storage plugin for AVG
> -------------------------------------------------------------
>
> Key: DRILL-8013
> URL: https://issues.apache.org/jira/browse/DRILL-8013
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - JDBC
> Affects Versions: 1.19.0
> Reporter: James Turton
> Assignee: Vova Vysotskyi
> Priority: Major
> Fix For: 1.20.1
>
>
> When running a query that includes the AVG aggregate against a JDBC data
> source, Drill transforms AVG into SUM0 / COUNT. COUNT is pushed down to the
> source correctly but SUM0 is pushed down as "$SUM0" instead of SUM, causing a
> syntax error. More info is visible at the link below.
>
> http://mail-archives.apache.org/mod_mbox/drill-user/202110.mbox/%3ccags_q5dguiisdhk7lzxeytup322+ttxlayskdxhimj0g-qs...@mail.gmail.com%3E
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