On Mar 12, 2010, at 10:14 AM, YAD wrote:
> Hello
>
>>>> from sqlalchemy import *
>>>> engine = create_engine('mysql://root:r...@localhost/sqlalchemy')
>>>> meta = MetaData(engine)
>>>> tb = Table('account', meta, autoload = True)
>>>> tb.append_column(Column('c',String(50)))
>
> this code does not work properly, it adds a column in the table but in
> fact the table remains intact. Where mistake?
SQLA doesn't have automatic support for ALTER TABLE. append_column() would
normally be called before a create() is issued.
To work with ALTER, use a recipe like that described in
http://www.sqlalchemy.org/docs/reference/ext/compiler.html#dialect-specific-compilation-rules
or look into using sqlalchemy-migrate.
>
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