Hello,
In Oracle we can create a Partitioned Table like the following:
CREATE TABLE sales_hash
(s_productid NUMBER,
s_saledate DATE,
s_custid NUMBER,
s_totalprice NUMBER)
PARTITION BY HASH(s_productid)
( PARTITION p1 TABLESPACE tbs1
, PARTITION p2 TABLESPACE tbs2
, PARTITION p3
you'd need to patch some kind of fake DBAPI connection that returns this
cursor from the cursor() method. it would be ugly but if the cursor
behaves well it could work. you'd get session.connection() to get a
sqlalchemy.engine.Connection, then patch your "fake" DBAPI connection
into it as
On 03/22/2017 02:17 PM, da...@benchling.com wrote:
Hey all,
We were wondering if you had any advice on having a large (~10) number
of polymorphic subclasses for a single base class. Using
with_polymorphic: '*' causes SQLAlchemy to joinedload all subclasses
like this:
SELECT ...
FROM
keeping in mind it's absolutely not safe to do this with *untrusted*
user input, you'd use exec/eval:
globals_ = globals()
locals_ = {}
exec("%s = map_model" % model, globals_, locals_)
q = session.query(model).filter(eval(condition, globals_, locals_))
On 03/22/2017 10:00 AM, Vijaya Sekar
longshot, i know.
We've got some legacy twisted code that does raw operations via a
twisted.enterprise.adbapi connection pool with the psycopg2 driver. Other
services in this deployment are configured to use SqlAlchemy for all
operations - this is the legacy holdout.
There are a few chunks
Hey all,
We were wondering if you had any advice on having a large (~10) number of
polymorphic subclasses for a single base class. Using with_polymorphic: '*'
causes SQLAlchemy to joinedload all subclasses like this:
SELECT ...
FROM base_table
LEFT OUTER JOIN sub_table_1 ON base_table.id =
Hi everyone,
I have an string which has the condition to be performed while retrieving
from database. I automap my model and make reference to it by using another
variable name.
How can achieve retrieve data by filter which is in string?
here is my code
from sqlalchemy import create_engine
