filterExpression |
An Apollo expression to keep some elements only. It is useful to process the
aggregation on a subpart of your input stream. |
expression |
Extracts the numerical value of each element of the input stream. For example,
person.income if your input is a stream of persons. Default:
identity function. |
ignoreNulls |
By default the aggregation ignores null elements. If ignoreNulls:
false the aggregation returns null if it finds at least
one null. Default: true. |
convertToFloat |
By default the aggregation keeps the type of the numerical element. For example,
if the income is an Integer, the numerical type is an
Integer. If convertToFloat: true, the average
aggregation returns a Float.Default
false. |
