[GRASS-dev] Separate sqlite database files for vector maps

[Sören Gebbert]

Dear devs,
i would like to implement sqlite database support as separated file for
each vector map. Similar to the dbf approach but with sqlite. Other
databases are no option in my case.
The reasons for this approach are the following:

* The temporal vector algebra would hugely benefit from separated sqlite
vector map files, since it can compute in parallel, no race condition or
serial processing of database requests is required
* Vector maps can easily be moved between locations with full database
content, no data loss. Simply the vector map directory must be archived
* Merging of mapsets is much easier, since the vector map sqlite databases
don't need to be merged, only copied

This approach would be implemented in addition to all other existing
approaches.

However, i don't know were to start with this, any hints or suggestions?

Best regards
Soeren
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