[Sqlalchemy-tickets] Issue #3086: server_default poorly documented (zzzeek/sqlalchemy)

[Mike B. <iss...@bi...>]

New issue 3086: server_default poorly documented
https://bitbucket.org/zzzeek/sqlalchemy/issue/3086/server_default-poorly-documented

Mike Bayer:

it only includes text().  illustrate how enough information to support an example like:


```
#!python

tbl = Table("derp", metadata,
    Column("arr", ARRAY(Text),
                server_default=array([literal_column("'foo'"),
                                    literal_column("'bar'"),
                                    literal_column("'baz'")])),
)

```

that is, expressions, literals, etc.   as a task elsewhere we have to figure out if we should drop the literal_column aspect of this.