patch Products.BTreeFolder2 to drop _mt_index.
drop _mt_index in BTreeFolder2 that is a main cause of ConflictError in parallel processing.
filter by meta_type in objectIds() and objectValues() are still supported, but slow.
/cc @nexedi
drop _mt_index in BTreeFolder2 that is a main cause of ConflictError in parallel processing.
filter by meta_type in objectIds() and objectValues() are still supported, but slow.
/cc @nexedi