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From "Paul Rogers (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-4812) Wildcard queries fail on Windows
Date Fri, 09 Dec 2016 03:11:58 GMT

     [ https://issues.apache.org/jira/browse/DRILL-4812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Paul Rogers updated DRILL-4812:
-------------------------------
      Labels: easyfix easytest ready-to-commit windows  (was: easyfix easytest windows)
    Reviewer: Paul Rogers

> Wildcard queries fail on Windows
> --------------------------------
>
>                 Key: DRILL-4812
>                 URL: https://issues.apache.org/jira/browse/DRILL-4812
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - Other
>    Affects Versions: 1.7.0
>         Environment: Windows 7
>            Reporter: Mike Lavender
>              Labels: easyfix, easytest, ready-to-commit, windows
>
> Wildcards within the path of a query are not handled on windows and result in a "String
index out of range" exception.
> for example:
> {noformat}
> 0: jdbc:drill:zk=local> SELECT SUM(qty) as num FROM dfs.parquet.`/trends/2016/1/*/*/3701`;
> Error: VALIDATION ERROR: String index out of range: -1
> SQL Query null
> {noformat}
> ----
> The problem exists within:
> exec\java-exec\src\main\java\org\apache\drill\exec\store\dfs\FileSelection.java
> private static Path handleWildCard(final String root)
> This function is looking for the index of the system specific PATH_SEPARATOR which on
windows is '\' (from System.getProperty("file.separator")).  The path passed in to handleWildcard
will not ever have those type of path separators as the Path constructor (from org.apache.hadoop.fs.Path)
sets all the path separators to '/'.
> NOTE:
> private static String removeLeadingSlash(String path)
> in that same file explicitly looks for '/' and does not use the system specific PATH_SEPARATOR.



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