I have a query I have constructed and I had to deal with a composite
primary key to select items;
q = s.query(cls)
or_cond = []
for x in id_batch:
pkf = [text(f + "=='" + v + "'") for f,v in zip(cls.SQL_PK,
x)]
and_cond = (and_(*pkf))
or_cond.append(and_cond)
q = q.filter(or_(*or_cond)).delete(synchronize_session=False)
cls.SQL_PK is a tuple of the primary key fields for the model described by
class. This is a class method that is part of a inherited class to the
model
The current target is SQL Server. My concern is using text('field =
'value'), is that going to work for other DB targets like say postgres?
The first round of doing this I tried using a
tuple_(*cls.SQL_PK).in_(id_batch), but that did not work and the resulting
SQL id not work in SSMS leading me to believe that SQL Server (or at least
the version we are using) does not support tuples.
Ken
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