[SERVER-62810] [ABT] Consider if we should introduce a first class "Fail" expression Created: 20/Jan/22  Updated: 21/Dec/22

Status: Backlog
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Improvement Priority: Major - P3
Reporter: Drew Paroski Assignee: Backlog - Query Optimization
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Query Optimization
Participants:

 Description   

At present, in the ABT we have special case logic so that the ABT->SBE lowering process will take FunctionCalls to "fail" and lower them down to EFail expressions.

Svilen proposed that we might want to explore adding a first class "Fail" expression to the ABT.

The goal of this ticket is to (1) determine if we should introduce a first class "Fail" expression to the ABT; and (2) if the answer is "yes" then implement a first class "Fail" expression and update the ABT->SBE lowering process accordingly (and remove the special case logic for lowering FunctionCalls to "fail").


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