Jianshi Huang created SPARK-7939:
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Summary: Make URL partition recognition return String by default
for all partition column values
Key: SPARK-7939
URL: https://issues.apache.org/jira/browse/SPARK-7939
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 1.4.0
Reporter: Jianshi Huang
Imagine the following HDFS paths:
/data/split=00
/data/split=01
...
/data/split=FF
If I have less than or equal to 10 partitions (00, 01, ... 09), currently
partition recognition will treat column 'split' as integer column.
If I have more than 10 partitions, column 'split' will be recognized as
String...
This is very confusing. *So I'm suggesting to treat partition columns as String
by default*, and allow user to specify types if needed.
Another example is date:
/data/date=2015-04-01 => 'date' is String
/data/date=20150401 => 'date' is Int
Jianshi
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