Mike Lavender created DRILL-4812:
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Summary: 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
Wildcards within the path of a query are not handled on windows and result in a
"String index out of range" exception.
for example:
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
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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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