from sqlalchemy import Column
from sqlalchemy import Integer
from sqlalchemy import update
from sqlalchemy.dialects import postgresql
from sqlalchemy.dialects.postgresql import JSONB
from sqlalchemy.ext.declarative import declarative_base
Base = declarative_base()
class A(Base):
__tablename__ = 'a'
id = Column(Integer, primary_key=True)
data = Column(JSONB)
stmt = update(A).values({A.data: A.data + {"key": "value"}}).where(A.id == 5)
print(stmt.compile(dialect=postgresql.dialect()))
On Fri, Oct 16, 2020, at 4:00 AM, Massimiliano della Rovere wrote:
> Greetings,
> how should I write the .values() section of a CORE update() statement to
> render the following
> postgres syntax?
>
> The data column is a JSON(B) and contains a dict object.
>
> UPDATE settings
> SET data = data || '{"key": "value"}'
> WHERE key = 'my_param';
>
> Thanks,
> Massimiliano
>
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> The Python SQL Toolkit and Object Relational Mapper
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SQLAlchemy -
The Python SQL Toolkit and Object Relational Mapper
http://www.sqlalchemy.org/
To post example code, please provide an MCVE: Minimal, Complete, and Verifiable
Example. See http://stackoverflow.com/help/mcve for a full description.
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