I need some help and advices to create a mapping. The context : - Multiple schemas on postgresql (dynamic number and name) who store the "same" tables. - SQLAlchemy used into a pyramid web application.
Example : A table "Customer" and a table "CustomerOrder" (link by customer.id) and a schema by society (not know before running) I read the documentation about horizontal, vertical sharding and entity name but I'm a little bit confused about the good solution to solve my problem. If I use "Entity name", I don't know how to configure the relationship between my two dynamic classes because I need to specify a class at configuration time but i really know the real subclasses only at runtime. If I use the "Horizontal sharding", I need to have an engine / schema (and use search_path). The shard configurtion will be (or seems to be) tricky. If I use the "Vertical sharding", I need also an engine / schema and re-configure the session several times with a new binds mapping. I made some google search with my context but it's not an usual case and i didn't find some helpful posts.... I also posed the question on stackoverflow last year but my solution don't really work : http://stackoverflow.com/questions/20212165/one-entity-in-multiple-schemas-how-to-switch-schema-on-runtime Thanks in advance. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
