[FLINK-19746] Why delete support for "as" function

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.11.0
• Assignee: Unassigned
• Reporter: appleyuchi
• Created: 21/Oct/20 04:56
• Updated: 22/Oct/20 13:37
• Resolved: 22/Oct/20 13:37

Description

I know the solution for my following question,so I'm not asking for support to debug this code

when I use the function "as("x","y","z")." in my code,
two available preparation code for "create table":

relevant code	running log	Deprecated?
tEnv.registerDataStream("Orders", orderA,"user,product,amount");	ok	YES
tEnv.createTemporaryView("Orders", orderA,$("user,product,amount"));	user,product,amount is not a field of type PojoType<Order, fields = [amount: Integer, product: String, user: Long]>. Expected: amount, product, user}	NO

Question:
why the support for "as" is REMOVED when the newest officially recommended createTemporaryView is used?