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https://issues.apache.org/jira/browse/DRILL-1706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15206567#comment-15206567
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Arina Ielchiieva commented on DRILL-1706:
-----------------------------------------
Reproduces in Drill 1.1.0.
Starting from 1.2.0 is not reproducible up to 1.6.0.
> date_sub function does not accept string as input in Drill
> ----------------------------------------------------------
>
> Key: DRILL-1706
> URL: https://issues.apache.org/jira/browse/DRILL-1706
> Project: Apache Drill
> Issue Type: New Feature
> Components: Functions - Drill, Functions - Hive
> Affects Versions: 0.7.0
> Reporter: Hao Zhu
> Assignee: Arina Ielchiieva
> Fix For: 1.2.0
>
>
> "date_sub" function does not accept string as input in Drill, however it does
> in Hive.
> This different behavior of the function will make customer re-write their
> query to use "cast as date".
> Minimum reproduce :
> {code}
> 0: jdbc:drill:zk=local> select date_sub('2014-11-12 16:45:22',15) from
> dfs.tmp.`drilltest/test.csv` ;
> Query failed: Failure while running fragment., Invalid format: "2014-11-12
> 16:45:22" is malformed at "14-11-12 16:45:22" [
> 9a6f18da-eb1e-4d91-879a-8d9d528efd59 on 10.250.0.115:31010 ]
> (java.lang.IllegalArgumentException) Invalid format: "2014-11-12 16:45:22"
> is malformed at "14-11-12 16:45:22"
> org.joda.time.format.DateTimeFormatter.parseDateTime():873
> org.apache.drill.exec.test.generated.ProjectorGen23.doSetup():63
> org.apache.drill.exec.test.generated.ProjectorGen23.setup():97
>
> org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.setupNewSchema():427
>
> org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.buildSchema():270
>
> org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.buildSchema():80
>
> org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.buildSchema():95
> org.apache.drill.exec.work.fragment.FragmentExecutor.run():111
> org.apache.drill.exec.work.WorkManager$RunnableWrapper.run():249
> .......():0
> Error: exception while executing query: Failure while executing query.
> (state=,code=0)
> {code}
> Comparing to Hive which is good.
> {code}
> 0: jdbc:hive2://n1a:10000/default> select date_sub('2014-11-12 16:45:22',15)
> from passwords limit 1 ;
> +-------------+
> | _c0 |
> +-------------+
> | 2014-10-28 |
> +-------------+
> 1 row selected (6.568 seconds)
> {code}
> Workaround in Drill:
> {code}
> 0: jdbc:drill:zk=local> select date_sub(cast('2014-11-12 16:45:22' as
> date),15) from dfs.tmp.`drilltest/test.csv` ;
> +------------+
> | EXPR$0 |
> +------------+
> | 2014-10-28 |
> +------------+
> 1 row selected (0.082 seconds)
> {code}
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