I have 3 tables:
general_product {id, name, price} mapped to GeneralProduct
electrical_product {id, name, price, voltage} mapped to
ElectricalProduct
food_product {id,name, price, calories} mapped to FoodProduct
1) I want to create a union query on the above 3 selecting only id,
name and price (which are common fields).
How do I do that? Could find the doc for union only in the non-orm
case.
2) Since this smells of inheritance, I read about class inheritance
mapping but couldn't decide if and which method applies here.
Help would be greatly appreciated.
TIA
Moshe
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