shawnding opened a new issue #463: Write a dataFrame to a table while after add an 'optional longtype' column , then get some dirty data from the new column URL: https://github.com/apache/incubator-iceberg/issues/463 import org.apache.spark.sql.SparkSession import org.apache.iceberg.hive.HiveCatalog import org.apache.iceberg.Schema import org.apache.iceberg.types.Types._ import org.apache.iceberg.PartitionSpec import org.apache.iceberg.catalog.TableIdentifier import org.apache.log4j.Logger import java.sql.Timestamp val schema = new Schema( NestedField.optional(1, "id", LongType.get()) ) val spec = PartitionSpec.builderFor(schema).identity("id").build() val catalog = new HiveCatalog(spark.sparkContext.hadoopConfiguration) val table_name = "iceberg_partition_test_120" val name = TableIdentifier.of("default", table_name) val table = catalog.createTable(name, schema, spec) import spark.implicits._ case class Record(id: Int) val recordsDF = spark.createDataFrame((1 to 3).map(i => Record(i))) recordsDF.write.format("iceberg").mode("append").save(s"default.${table_name}") spark.read.format("iceberg").load(s"default.${table_name}").show **//----show return ----** +---+ | id| +---+ | 1| | 2| | 3| +---+ table.updateSchema().addColumn("phone", LongType.get()).commit(); val recordsDF = spark.createDataFrame((4 to 6).map(i => Record(i))) recordsDF.write.format("iceberg").mode("append").save(s"default.${table_name}") spark.read.format("iceberg").load(s"default.${table_name}").show **//----show return ----( then some dirty numbers in the new column )** +---+-----+ | id|phone| +---+-----+ | 4| **5**| ` _( dirty data)_` | 5| **5**| ` _( dirty data)_` | 6| **5**| ` _(dirty data )_` | 1| null| | 2| null| | 3| null| +---+-----+
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
