Question

Is there a way in SQLalchemy to tell the query which index to use?

The reason I need this is that the SQL queries it generates use the “wrong” index – there exists an index for exactly the two fields that I have and it doesn’t use it.

Thanks!

Answer 1

I think you can use with_hint() for this.

e.g.

session.query(Model).with_hint(Model, 'USE INDEX col1_index')

Honestly, I didn’t really know about this; I discovered it by finding ‘USE INDEX’ in their ORM tests.