As already stated, IFS, LTS, REUSE, and a bunch more are MultiValue
Handling Functions documented in Universe Basic manual. Don't know
where UD documents them.
They can be called from I-descriptors.
Unidata is similar, but I think you might need to call them from
I-descriptors via SUBR().
This is a difference between Prime-style I-descriptors & Pick-style
correlatives. For correlatives, you write as if single-value & the
correlative handler feeds the appropriate values from the mv to the
correlative.
For I-desc, you have to write like you would in UV/UD Basic. E.g.,
@RECORD<3> refers to the entire @vm-delineated dynamic array.
The following should all work on UV if I were capable of typing it
correctly.
This parallels your own style:
0002: IFS( LTS( @RECORD<3>, @RECORD<2> ), @RECORD<3>-...@record<2>+ REUSE(
86400 ), @RECORD<3>-...@record<2> )
for Unidata I *think* you need to do something like this:
0002: SUBR( '-IFS', SUBR( '-LTS', @RECORD<3>, @RECORD<2> ),
@RECORD<3>-...@record<2> + REUSE( 86400 ), @RECORD<3>-...@record<2> )
You can use the dict names START & FINISH instead of @RECORD<2>, @RECORD<3>
I prefer:
0002: (FINISH - START) + ( LTS( START, FINISH ) * REUSE( 86400 ) )
To handle the 1st pair of values, where FINISH is blank because the job
is still running, you might wrap the whole thing inside another IFS:
0002: IFS( NES( FINISH, '' ), [one of the calculations listed above], [
'' or REUSE( 'running' ) or whatever] )
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