Xiao Li created SPARK-16825:
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Summary: Replace hive.default.fileformat by
spark.sql.default.fileformat
Key: SPARK-16825
URL: https://issues.apache.org/jira/browse/SPARK-16825
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.0.0
Reporter: Xiao Li
Currently, we are using `hive.default.fileformat`, if users do not specify the
format in the CREATE TABLE SQL statement. Multiple issues exist:
- This parameter value is not from `hive-site.xml`. Thus, even if users change
the hive.default.fileformat in `hive-site.xml`, Spark will ignore it. To change
the parameter values, users have to use Spark interface, (e.g., by a SET
command or API).
- This parameter is not documented.
- This parameter value will not be sent to Hive metastore. It is being used by
Spark internals when processing CREATE TABLE statement.
- This parameter is case sensitive.
Since this is being used by Spark only, it does not make sense to use a
parameter starting from `hive`. we might follow the other Hive-related
parameters and introduce a new Spark parameter here. It should be public. Thus,
how about replacing `hive.default.fileformat` by
`spark.sql.default.fileformat`. we also should make it case insensitive.
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