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case

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This commit is contained in:
Koch
2022-10-19 15:38:28 +02:00
parent bf0587b028
commit cae6a21b89
17 changed files with 20 additions and 532 deletions
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16
performance/srv/performance-service.cds
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@@ -3,8 +3,8 @@ using { sap.capire.performance as my } from '../db/schema';
service PerformanceService {
entity OrdersHeaders as projection on my.OrdersHeaders;
entity OrdersItems as projection on my.OrdersItems;
entity Books as projection on my.Books;
entity Authors as projection on my.Authors;
entity Books as projection on my.Books;
entity Authors as projection on my.Authors;
// static
view OrdersItemsViewJoin as select
@@ -66,7 +66,7 @@ from OrdersItems {*, Header.OrderNo, Header.buyer, Header.currency }
where OrdersItems.price > 100;
// TODO avoid CASE and/or JOIN: Denormalization of expensive complex structures,
// TODO avoid CASE -- Denormalization of expensive complex structures,
// calculate on write instead of read
// CASE -> try to remodel to avoid CASE, if re-modelling is not possible,
@@ -82,6 +82,14 @@ entity OrdersItemsCaseView as projection on OrdersItems {
};
extend my.OrdersItems with {
itemCategory: String enum{ Small; Medium; Large;};
// fill itemCategory at runtime in performance-service.js
}
entity OrdersItemsNoCaseView as projection on OrdersItems {
*,
itemCategory as category
};
}