register UUID type for jdbc driver

Author: xborder

flight/flight-sql-jdbc-core/src/main/java/org/apache/arrow/driver/jdbc/ArrowDatabaseMetadata.java

@@ -75,10 +75,12 @@
 import org.apache.arrow.vector.VarBinaryVector;
 import org.apache.arrow.vector.VarCharVector;
 import org.apache.arrow.vector.VectorSchemaRoot;
+import org.apache.arrow.vector.extension.UuidType;
 import org.apache.arrow.vector.ipc.ReadChannel;
 import org.apache.arrow.vector.ipc.message.MessageSerializer;
 import org.apache.arrow.vector.types.Types;
 import org.apache.arrow.vector.types.pojo.ArrowType;
+import org.apache.arrow.vector.types.pojo.ExtensionTypeRegistry;
 import org.apache.arrow.vector.types.pojo.Field;
 import org.apache.arrow.vector.types.pojo.Schema;
 import org.apache.arrow.vector.util.Text;
@@ -164,6 +166,9 @@ public class ArrowDatabaseMetadata extends AvaticaDatabaseMetaData {
         LONGNVARCHAR, SqlSupportsConvert.SQL_CONVERT_LONGVARCHAR_VALUE);
     sqlTypesToFlightEnumConvertTypes.put(DATE, SqlSupportsConvert.SQL_CONVERT_DATE_VALUE);
     sqlTypesToFlightEnumConvertTypes.put(TIMESTAMP, SqlSupportsConvert.SQL_CONVERT_TIMESTAMP_VALUE);
+
+    // Register the UUID extension type so it is always available for the driver
+    ExtensionTypeRegistry.register(UuidType.INSTANCE);
   }
 
   ArrowDatabaseMetadata(final AvaticaConnection connection) {