Tail Operator

, ,
1

Imported from previous forum

2

Hello,
Let suppose optional presence, ‘tail value’ not present in the stream and ‘previous value’=empty:

the field value is considered absent, but what about previous value?

Thanks in advance,
– Ale

3

not updated (still empty)
/Rolf

Hello, Let suppose optional presence, ‘tail value’ not present in the
stream and ‘previous value’=empty:

the field value is considered absent, but what about previous value?

Thanks in advance, – Ale