bowenli86 commented on a change in pull request #8353: [FLINK-12233][hive] Support table related operations in HiveCatalog URL: https://github.com/apache/flink/pull/8353#discussion_r282181650
########## File path: flink-connectors/flink-connector-hive/src/main/java/org/apache/flink/table/catalog/hive/GenericHiveMetastoreCatalog.java ########## @@ -42,23 +46,35 @@ import org.apache.hadoop.hive.conf.HiveConf; import org.apache.hadoop.hive.metastore.TableType; -import org.apache.hadoop.hive.metastore.api.AlreadyExistsException; import org.apache.hadoop.hive.metastore.api.Database; -import org.apache.hadoop.hive.metastore.api.NoSuchObjectException; +import org.apache.hadoop.hive.metastore.api.FieldSchema; +import org.apache.hadoop.hive.metastore.api.SerDeInfo; +import org.apache.hadoop.hive.metastore.api.StorageDescriptor; import org.apache.hadoop.hive.metastore.api.Table; -import org.apache.hadoop.hive.metastore.api.UnknownDBException; -import org.apache.thrift.TException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; +import java.util.ArrayList; +import java.util.HashMap; import java.util.List; +import java.util.Map; +import java.util.stream.Collectors; /** * A catalog that persists all Flink streaming and batch metadata by using Hive metastore as a persistent storage. */ public class GenericHiveMetastoreCatalog extends HiveCatalogBase { private static final Logger LOG = LoggerFactory.getLogger(GenericHiveMetastoreCatalog.class); + // Prefix used to distinguish properties created by Hive and Flink, + // as Hive metastore has its own properties created upon table creation and migration between different versions of metastore. + private static final String FLINK_PROPERTY_PREFIX = "flink."; + + // Flink tables should be stored as 'external' tables in Hive metastore Review comment: You are right, I verified it locally. I think using Hive managed tables would be fine here. ---------------------------------------------------------------- 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: us...@infra.apache.org With regards, Apache Git Services