For this one, assuming you're using metadata.create_all() and not an
alembic migration, the CreateColumn DDL construct gives you a hook for
this kind of thing:
http://docs.sqlalchemy.org/en/rel_1_0/core/ddl.html?highlight=createtable#sqlalchemy.schema.CreateColumn
in the example there you can see it's looking for a flag in column.info.
So your column would be like this:
Column('some_col', nullable=False, info={"oracle_not_null": False})
then in your @compiles recipe look for column.info['oracle_not_null']
while at the same time looking at compiler.dialect.name == 'oracle'.
On 04/22/2016 07:29 AM, Piotr Dobrogost wrote:
As Oracle does not support inserting empty string into NOT NULL column I
would like to declare specific column as nullable only for Oracle.
How can I do this?
Regards,
Piotr Dobrogost
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