Memory consumption

[marfago]

The current implementation of GeoIndex wraps an IOBTree object containing all the gometries in the index. While it works fine for searching, it can produce a sort of memory leak when loading data.
I have a big amount of georeferenced data (1.2M) and an ETL procedure to load them all one shot.
Unfortunately the memory consumption grows up to 50GB and the process exits because killed.

I tried to commit the transaction and the subtransaction in batches, but did not help.
Any suggestions?