On Nov 5, 2007, at 4:11 PM, Mike Orr wrote:

>
> What's the simplest way to get the names of all columns containing
> character data (VARCHAR or TEXT).  I've got it down to this, which
> works but is a bit obscure:
>
> def get_text_fields(table):
>     substrings = ["text", "string", "char"]
>     ret = []
>     for c in table.columns:
>         name = c.type.__class__.__name__.lower()
>         for sub in substrings:
>             if sub in name:
>                 ret.append(c.name)
>                 break
>     return ret
>
> Regarding my earlier problem with foreign keys on autoload tables,
> I've been getting inconsistent behavior in my app, so I need to test
> it some more and verify whether there is a SQLAlchemy bug or stability
> issue before I can report back.

how about [c for c in table.c if isinstance(c.type, types.String)]  ?

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