[DRIVERS-730] Create an expression to test if expression type is numerical Created: 01/Aug/19  Updated: 27/May/22  Resolved: 25/Feb/20

Status: Closed
Project: Drivers
Component/s: None
Fix Version/s: None

Type: Task Priority: Major - P3
Reporter: Backlog - Core Eng Program Management Team Assignee: Unassigned
Resolution: Duplicate Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
depends on CSHARP-2722 Create an expression to test if expre... Closed
depends on SERVER-34373 create an expression to test if expre... Closed
Duplicate
duplicates DRIVERS-756 New Agg Expressions for 4.4 Closed
Server Compat: 4.3
Driver Compliance:
Key Status/Resolution FixVersion
CSHARP-2722 Duplicate

 Description   

A new expression, $isNumber, was added to the aggregation expression language. It takes a single expression as an unnamed argument; the format is: {$isNumber: <expression>}. It returns true if the expression evaluates to an int, double, decimal, or long, and false otherwise.


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