Hello Here's my case. I have 3 tables, "summits", "parkings", and "huts". They all have an "elevation" column. And I want to do queries like that: "the summits, parkings, and huts that are higher than 2000 meters", "the summits that are lower than 1000 meters", "the parkings and huts that are between 500 and 2000 meters". What's to be noted is that the list of tables to query isn't fixed, it actually depends on some parameter in the received HTTP request.
The more naive approach involves doing separate queries. For example if the HTTP request has tables=summits,huts, then the queries s.query(Summit).filter() and s.query(Hut).filter() are performed. This might not be efficient because of the separate database queries. I thought about using Concrete Table Inheritance for that, but I'm not sure if it can meet my "the list of tables to query varies from one HTTP request to another". I'd appreciate some advice and guidance on that issue. Thanks, Eric --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
