NexusDB

This approach adds an additional abstraction layer. Numeric types with a fixed number of decimals are mapped onto integer values or onto floating point values. But since neither FlashFiler nor Nexus DB support numeric values with a fixed number of decimals, which can be freely chosen by the user, this loss of meta data seems to be tolerable.

The converters only support compound indexes, i.e. indexes that are created by the value of one or more fields. Expression indexes and/or indexes containing unknown fields are ignored.

The importers are designed for the use by developers. This means that it is assumed that the user has enough privileges for the operation and knows how to use the source environment to determine the reason for import failures.