On 03/07/2017 03:49 PM, Jonathan Vanasco wrote:
I'm deploying something and unsure of the underlying postgresql version
for a given environment. most deployments are 9.6, a handful are 9.2.
upgrading everything is not an option I have.
i'm using declarative.
the only issue I have right now, is that JSONB is preferred to JSON
support. Is there anything within SqlAlchemy that can be done to
determine if the column/operations are JSON vs JSONB?
the dialect has .server_version_info
engine.dialect.server_version_info >= (9, 6)
but you need your engine and connection to handle that. JSONB and JSON
have different operator support. So you might want to do a
TypeDecorator around it or similar but you can only support a subset of
operations (contained by, contains, has_any, etc. aren't on JSON).
I could handle this with some environment variables, but if there is an
option within postgres, I'd like to explore it.
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SQLAlchemy -
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http://www.sqlalchemy.org/
To post example code, please provide an MCVE: Minimal, Complete, and Verifiable
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