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https://issues.apache.org/jira/browse/SPARK-19580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-19580:
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Assignee: Apache Spark
> Support for avro.schema.url while writing to hive table
> -------------------------------------------------------
>
> Key: SPARK-19580
> URL: https://issues.apache.org/jira/browse/SPARK-19580
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.6.3, 2.1.0
> Reporter: Mateusz Boryn
> Assignee: Apache Spark
> Priority: Critical
>
> Support for writing to Hive table which uses Avro schema pointed to by
> avro.schema.url is missing.
> I have Hive table with Avro data format. Table is created with query like
> this:
> {code:sql}
> CREATE TABLE some_table
> PARTITIONED BY (YEAR int, MONTH int, DAY int)
> ROW FORMAT SERDE
> 'org.apache.hadoop.hive.serde2.avro.AvroSerDe'
> STORED AS INPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat'
> OUTPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.avro.AvroContainerOutputFormat'
> LOCATION 'hdfs:///user/some_user/some_table'
> TBLPROPERTIES (
> 'avro.schema.url'='hdfs:///user/some_user/some_table.avsc'
> )
> {code}
> Please notice that there is `avro.schema.url` and not `avro.schema.literal`
> property, as we have to keep schemas in separate files for some reasons.
> Trying to write to such table results in NPE.
> Tried to find workaround for this, but nothing helps. Tried:
> - setting df.write.option("avroSchema", avroSchema) with explicit schema
> in string
> - changing TBLPROPERTIES to SERDEPROPERTIES
> - replacing explicit detailed SERDE specification with STORED AS AVRO
> I found that this can be solved by adding a couple of lines in
> `org.apache.spark.sql.hive.HiveShim` next to
> `AvroSerdeUtils.AvroTableProperties.SCHEMA_LITERAL` is referenced.
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