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https://issues.apache.org/jira/browse/TAJO-1422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi resolved TAJO-1422.
--------------------------------
Resolution: Fixed
Fix Version/s: 0.11.0
> Investigate the case where fragments == null in SeqScanExec
> -----------------------------------------------------------
>
> Key: TAJO-1422
> URL: https://issues.apache.org/jira/browse/TAJO-1422
> Project: Tajo
> Issue Type: Improvement
> Reporter: Hyunsik Choi
> Priority: Minor
> Fix For: 0.11.0
>
>
> See the following part in SeqScanExec. Intuitively, we don't need to make and
> execute Task if fragments is null. But, the current code requires null check.
> We need to investigate its essential cause, and we should remove this case if
> possible.
> {code:title=SeqScanExec.java}
> if (fragments != null) {
> if (fragments.length > 1) {
> this.scanner = new MergeScanner(context.getConf(),
> plan.getPhysicalSchema(), meta,
> FragmentConvertor.convert(context.getConf(), fragments), projected
> );
> {code}
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