Using Postgres 9.1, SqlAlchemy 0.8.
I need to store information like
[
[10, 'liters', 'tea'],
[20, 'milliliters', 'salt'],
]
as one column into Postgres.
What is the best way to do this? Of course I use a second table with a 1:N
relationship
I am thinking about using the Postgres Array
If you are only after storage (leaving aside querying, indexing, ...)
a simple JSON column [1] could do. The advantage being portability
between databases. I've used this to as simple key-value store of data
associated with a row.
regards
robert
[1]
Sorry to ressurrect this thread but the problem is still there. Since
SQLAlchemy knows the encoding used to communicate with the database, it can
properly decode the error strings returned by the database to unicode. So,
I think it should be SQLAlchemy's responsibility to convert the error
OK as I said earlier, I'm not able to reproduce this.So I'd need that
reproduction case in order to do anything. To be honest it sounds more like a
psycopg2 bug, since psycopg2 does the decoding in most cases nowadays and even
works with Python 3, so for it to be raising an exception with
I am trying SELECT FOR SHARE a set of rows in a table so that they are
locked until the end of the transaction. I am using SQLAlchemy 0.7.9 to do
this in a PostgreSQL 9.1.6 database. This is the python code in question:
NUM_TERMS = 10
conn = engine.connect()
get_terms =
can't reproduce:
from sqlalchemy import *
m = MetaData()
t = Table('t', m, Column('x', Integer))
s = select([t], for_update=read)
from sqlalchemy.dialects import postgresql
print s.compile(dialect=postgresql.dialect())
e = create_engine(postgresql://scott:tiger@localhost/test, echo=True)
with
The problem is the SQL query generated by the select code above is not FOR
SHARE, it's FOR UPDATE:
SELECT search_terms.term_id, search_terms.term
FROM search_terms
WHERE search_terms.lock = :lock_1 AND search_terms.status = :status_1
ORDER BY search_terms.term
LIMIT :param_1 FOR
