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

["Daniel Barclay (Drill) (JIRA)" <ji...@apache.org>]

Daniel Barclay (Drill) created DRILL-3813:
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             Summary: 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 (Drill)
            Assignee: Aman Sinha


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:

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}




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