Hi all,
It became apparent to me from performance measurements that the DELETE
operation is very slow, when operating on large recordsets with indexes
involved. My deduction is that SQLite updates the indexes for every
deleted row, which in painstakingly slow...
Since the DELETE should be atomic, the index update could also be
atomic, and a mass pruning of the index tree is hugely faster than
individual removals.
My question is: is my deduction correct? Is there any way to fix/improve
this in userland? Or are there prospects for this to be improved in
SQLite in the foreseeable future?
Thanks,
Dinu
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