External class - Has the concept changed recently??
Many posts/questions on external classes and ppl have different picture of what an external class's definition is, in Pega. I think external class concept is made simple now in Pega starting 7.2. I'm not sure though. someone can confirm.
External class - Pega 7.2 help URL -- Help page here is a cleaned one. It doesn't talk about pzInsKey, nothing about can't create declare index etc. Probably now, external class is just simple. It just maps to a table in another database, but has all features of a internal class.
In latest version, I also noticed that when I add a record to external class, Pega is adding a "pzInsKey" property to that record. May be they do this to , to be able to efficiently open records using "Obj-Open-By-Handle" on external records (that have multiple columns as primary key). But wait, since the external table doesn't have pzInsKey column, therefore no index on that column, and therefore can't be an efficient obj-open-by-handle. Then why at all does Pega add pzInsKey to the external class's instance record?
Just wanted to check how you found the external class related help content. I searched via help index but couldn't locate. I ask this (seemingly novice question) because lately with the 7.3.1 help system, I'm having hard time finding help topics.
I was trying to find help content for "process" tab in flow rule form. I couldn't find it in 7.3.1 help. I could navigate till the flows help topic here. After this, can't find way to navigate to rule form tab wise help. But I some how found it in 7.3 help here (finding this was not straight forward too).
Is there an easy way to find rule form related help content in the latest 7.3.1 help system?
I had cross checked in 7.3.1 help for the Rule-Obj-Flow rule, which doesn't contain explanation about each tab. This explanation is available in Pega 7.2.2, may be you can raise a documentation bug regarding this missing documentation.