Hive table DDLs not updated when dataset schema is updated.

If a dataset is updated with a new schema the HIVE DDL columns are not kept in sync. The avro.schema.url is correctly updated.

Either they should be kept in sync or only the avro.schema.url should be used (not sure what impala does here with a parquet backed table).

Add

// convert the schema to Hive columns
table.getSd().setCols(HiveSchemaConverter.convertSchema(descriptor.getSchema()));

to HiveUtils.