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Posted to issues@spark.apache.org by "Xiao Li (JIRA)" <ji...@apache.org> on 2016/10/14 20:24:20 UTC
[jira] [Resolved] (SPARK-17620) hive.default.fileformat=orc does
not set OrcSerde
[ https://issues.apache.org/jira/browse/SPARK-17620?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiao Li resolved SPARK-17620.
-----------------------------
Resolution: Fixed
Fix Version/s: 2.1.0
Issue resolved by pull request 15190
[https://github.com/apache/spark/pull/15190]
> hive.default.fileformat=orc does not set OrcSerde
> -------------------------------------------------
>
> Key: SPARK-17620
> URL: https://issues.apache.org/jira/browse/SPARK-17620
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Brian Cho
> Priority: Minor
> Fix For: 2.1.0
>
>
> Setting {{hive.default.fileformat=orc}} does not set OrcSerde. This behavior is inconsistent with {{STORED AS ORC}}. This means we cannot set a default behavior for creating tables using orc.
> The behavior using stored as:
> {noformat}
> scala> spark.sql("CREATE TABLE tmp_stored_as(id INT) STORED AS ORC")
> res0: org.apache.spark.sql.DataFrame = []
> scala> spark.sql("DESC FORMATTED tmp_stored_as").collect.foreach(println)
> ...
> [# Storage Information,,]
> [SerDe Library:,org.apache.hadoop.hive.ql.io.orc.OrcSerde,]
> [InputFormat:,org.apache.hadoop.hive.ql.io.orc.OrcInputFormat,]
> [OutputFormat:,org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat,]
> ...
> {noformat}
> Behavior setting default conf (SerDe Library is not set properly):
> {noformat}
> scala> spark.sql("SET hive.default.fileformat=orc")
> res2: org.apache.spark.sql.DataFrame = [key: string, value: string]
> scala> spark.sql("CREATE TABLE tmp_default(id INT)")
> res3: org.apache.spark.sql.DataFrame = []
> scala> spark.sql("DESC FORMATTED tmp_default").collect.foreach(println)
> ...
> [# Storage Information,,]
> [SerDe Library:,org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe,]
> [InputFormat:,org.apache.hadoop.hive.ql.io.orc.OrcInputFormat,]
> [OutputFormat:,org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat,]
> ...
> {noformat}
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