[ https://issues.apache.org/jira/browse/SPARK-16803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-16803: ------------------------------------ Assignee: Apache Spark > SaveAsTable does not work when source DataFrame is built on a Hive Table > ------------------------------------------------------------------------ > > Key: SPARK-16803 > URL: https://issues.apache.org/jira/browse/SPARK-16803 > Project: Spark > Issue Type: Bug > Components: SQL > Affects Versions: 2.0.0 > Reporter: Xiao Li > Assignee: Apache Spark > > {noformat} > scala> sql("create table sample.sample stored as SEQUENCEFILE as select 1 as > key, 'abc' as value") > res2: org.apache.spark.sql.DataFrame = [] > scala> val df = sql("select key, value as value from sample.sample") > df: org.apache.spark.sql.DataFrame = [key: int, value: string] > scala> df.write.mode("append").saveAsTable("sample.sample") > scala> sql("select * from sample.sample").show() > +---+-----+ > |key|value| > +---+-----+ > | 1| abc| > | 1| abc| > +---+-----+ > {noformat} > In Spark 1.6, it works, but Spark 2.0 does not work. The error message from > Spark 2.0 is > {noformat} > scala> df.write.mode("append").saveAsTable("sample.sample") > org.apache.spark.sql.AnalysisException: Saving data in MetastoreRelation > sample, sample > is not supported.; > {noformat} > So far, we do not plan to support it in Spark 2.0. Spark 1.6 works because it > internally uses {{insertInto}}. But, if we change it back it will break the > semantic of {{saveAsTable}} (this method uses by-name resolution instead of > using by-position resolution used by {{insertInto}}). > Instead, users should use {{insertInto}} API. We should correct the error > messages. Users can understand how to bypass it before we support it. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org