Great thank you for the quick response! I actually found this morning that I can put the class definition in alembic/ddl/impl.py and it works (seemed like a logical module for it?).
Next issue is the CREATE TABLE statement used to create the alembic_version table uses keywords that are not valid HiveQL keywords. I assume somewhere in the HiveImpl class I could override the contents of this statement, but I couldn't figure out where/how to do that. Thanks, Alexander On Friday, February 10, 2017 at 9:45:38 AM UTC-5, mike bayer wrote: > > > > On 02/10/2017 07:41 AM, Alexander Peletz wrote: > > Hello, > > > > I would like to use Alembic to manage my Hive Metastore. I have > > installed, PyHive, SqlAlchemy, and Alembic. I am able to create a > > functional engine object using the 'hive' dialect in sqlalchemy, however > > I cannot get Alembic to recognize this dialect. The problem appears to > > be a lack of a HiveImpl class in the Alembic package. I attempted to > > resolve this by creating an alembic/ddl/hive.py module and pasting the > > following code into that module: > > > > > > from .impl import DefaultImpl > > > > class HiveImpl(DefaultImpl): > > __dialect__ = 'hive' > > > > you don't actually have to create a "hive.py" file. Anywhere in your > hive dialect, simply put the above code that you have (using the correct > imports of course). The DefaultImpl uses a metaclass that will allow > the "hive" name to be available to alembic as a result of this class > being created. > > > > > > > > > > > > I simply want to be able to execute raw SQL against a Hive instance (no > > ORM implementation needed) and I was hoping to use Alembic to manage the > > minimum upgrade/downgrade functionality. Are there any simple edits I > > can make to the Alembic source code to allow me to achieve this goal? > > > > > > > > Thanks, > > > > Alexander > > > > -- > > You received this message because you are subscribed to the Google > > Groups "sqlalchemy-alembic" group. > > To unsubscribe from this group and stop receiving emails from it, send > > an email to sqlalchemy-alembic+unsubscr...@googlegroups.com > <javascript:> > > <mailto:sqlalchemy-alembic+unsubscr...@googlegroups.com <javascript:>>. > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "sqlalchemy-alembic" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy-alembic+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
