create an expression to test if expression type is numerical

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    • Query 2019-07-29, Query 2019-08-12
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      Currently to determine if type of expression is a number you have to do this:

      {$in:[ {$type:"$expression"}, ["int", "long", "double", "decimal"] ]}

      It would be nice to have shorthand syntax for this test. Maybe $isNumeric or $isNumber?

      Note that query/matcher already supports {a:{$type:"number"}} but not agg.

              Assignee:
              George Wangensteen (Inactive)
              Reporter:
              Asya Kamsky
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