[jira] [Updated] (DRILL-3813) table from directory subtree having no descendent files fails with index error

["Vitalii Diravka (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-3813?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vitalii Diravka updated DRILL-3813:
-----------------------------------
    Fix Version/s: 1.13.0

> table from directory subtree having no descendent files fails with index error
> ------------------------------------------------------------------------------
>
>                 Key: DRILL-3813
>                 URL: https://issues.apache.org/jira/browse/DRILL-3813
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: SQL Parser, Storage - Other
>            Reporter: Daniel Barclay
>            Priority: Major
>             Fix For: 1.13.0
>
>
> Trying to use as a table a directory subtree that has no descendent files (but zero or more descendent directories) yields what seems to be a partially handled index out-of-bounds condition.  
> For example, with {{/tmp/empty_directory}} being an empty directory:
> {noformat}
> 0: jdbc:drill:zk=local> SELECT * FROM `dfs`.`tmp`.`empty_directory`;
> Error: VALIDATION ERROR: Index: 0, Size: 0
> [Error Id: 747425c9-5350-4813-9f0d-ecf580e15101 on dev-linux2:31010] (state=,code=0)
> 0: jdbc:drill:zk=local> 
> {noformat}
> Also, with {{/tmp/no_child_files_subtree}} having two child directories and a grandchild directory, but not descendent files:
> {noformat}
> 0: jdbc:drill:zk=local> SELECT * FROM `dfs`.`tmp`.`no_child_files_subtree`;
> Error: VALIDATION ERROR: Index: 0, Size: 0
> [Error Id: abc90424-8434-4403-b44b-0ba69ef43151 on dev-linux2:31010] (state=,code=0)
> 0: jdbc:drill:zk=local> 
> {noformat}
> A directory subtree having no files was expected to be taken as a table with no rows (and a null schema).



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