Regular expressions in SQLalchemy queries?

Question

Is it possible to use a regex in a way similar to session.query(MyObject).filter_by(REGEX)?

If not, how can I use sqlAlchemy to retrieve records that ha

Answer 1

[DISCLAIMER: no regex]

I'm answering to the question "how can I use sqlAlchemy to retrieve records that have a varchar PK beginning with a certain value" because for this simple use case a LIKE probably is both less expensive and more portable (asking for regular expressions seems like a manifestation of the XY Problem).

In SQLAlquemy (borrowing from Alex):

session.query(Object).filter(Object.column.like('something%'))

In SqlSoup I use:

db.table.filter(db.table.column.like('something%')) 

Answer 2

I think I got it:

session.query(Object).filter(Object.column.op('regexp')(REGEX))

Answer 3

For the record, you can do essentially the same syntax as Paulo Scardine's answer in SQLAlchemy too;

session.query(Object).filter(Object.column.like('something%'))