lastval
lastval — aggregate function to return the last value from a specified column.
DESCRIPTION
This function returns the last non-null value, if any, in the range of values returned by its query predicate.
Expression expr
must contain the name of a
column in a LiveView table. The returned last value is of the same type as the
specified column.
If the query returns no rows, the aggregate returns null
.
SEE ALSO
This LiveView aggregate function is based on the lastval aggregate function in the StreamBase expression language.