I am trying test converting an Iceberg table to Delta as doc

Question

I am trying test converting an Iceberg table to Delta as documented <https docs databricks com ingestion convert to delta html> but I am getting a NullPointerException

Samrose · Answer

stacktrace ```Py4JJavaError An error occurred while calling o345 sql java lang NullPointerException at shaded databricks org apache iceberg SchemaParser typeFromJson SchemaParser java 162 at shaded databricks org apache iceberg SchemaParser fromJson SchemaParser java 237 at shaded databricks org apache iceberg TableMetadataParser fromJson TableMetadataParser java 262 at shaded databricks org apache iceberg TableMetadataParser read TableMetadataParser java 239 at shaded databricks org apache iceberg TableMetadataParser read TableMetadataParser java 233 at shaded databricks org apache iceberg StaticTableOperations lt init gt StaticTableOperations java 40 at shaded databricks org apache iceberg hadoop HadoopTables newTableOps HadoopTables java 195 at shaded databricks org apache iceberg hadoop HadoopTables load HadoopTables java 85 at com databricks sql transaction tahoe IcebergTable lt init gt IcebergTable scala 57 at sun reflect NativeConstructorAccessorImpl newInstance0 Native Method at sun reflect NativeConstructorAccessorImpl newInstance NativeConstructorAccessorImpl java 62 at sun reflect DelegatingConstructorAccessorImpl newInstance DelegatingConstructorAccessorImpl java 45 at java lang reflect Constructor newInstance Constructor java 423 at com databricks sql transaction tahoe commands ConvertToDeltaCommandUtils getIcebergTable ConvertToDeltaCommand scala 985 at com databricks sql transaction tahoe commands ConvertToDeltaCommandUtils getIcebergTable$ ConvertToDeltaCommand scala 967 at com databricks sql transaction tahoe commands ConvertToDeltaCommand$ getIcebergTable ConvertToDeltaCommand scala 999 at com databricks sql transaction tahoe commands ConvertToDeltaCommandBase getTargetTable ConvertToDeltaCommand scala 368 at com databricks sql transaction tahoe commands ConvertToDeltaCommandBase $anonfun$run$1 ConvertToDeltaCommand scala 109 at com databricks sql acl CheckPermissions$ trusted CheckPermissions scala 1801 at com databricks sql transaction tahoe commands ConvertToDeltaCommandBase run ConvertToDeltaCommand scala 100 ```

Alberto Rguez · Answer

I think this should be addressed to Databricks support but I can tell you that I have tried the same and opened a support ticket with them and I got nowhere Let me know if you can make it work please slightly smiling face