dump function fills empty cells with `N`

[candronikos]

Hello,

I noticed that empty cells are treated as null values when a dump is done.

Is it possible to have a null type for zinc to differentiate it from an empty cell?

ver:"2.0"
air,zone,temp,point,sp,fan,kind,his,id,writable,envizi,tz,dis,supply,defaultVal,sensor,return,nubeCur,cur,connRef,nubeConnRef,nubeWrite,nubeHis,pressure
M,M,M,M,M,M,"Number",M,@U02,M,"ZAT_SP","Sydney","ZAT Setpoint",N,N,N,N,N,N,N,N,N,N,N
M,N,M,M,M,M,"Number",M,@UO1,M,"SAT_SP","Sydney","SAT Setpoint",M,N,N,N,N,N,N,N,N,N,N
M,N,M,M,M,M,"Number",M,@AC1_SAT_SP,N,"AC1_SATSP","Sydney","SAT_SP",M,0,N,N,N,N,N,N,N,N,N
M,N,M,M,N,M,"Number",M,@UI2,N,"SAT!","Sydney","SAT",M,N,M,N,N,N,N,N,N,N,N
M,N,M,M,M,M,"Number",M,@AC1_SAT_SP1,N,"AC1_SATSP","Sydney","SAT_SP",M,0,N,N,N,N,N,N,N,N,N
M,N,M,M,N,M,"Number",M,@UI3,N,"RAT","Sydney","RAT",N,N,M,M,N,N,N,N,N,N,N
M,M,M,M,N,M,"Number",M,@UI4,N,"ZAT","Sydney","ZAT",N,N,M,N,N,N,N,N,N,N,N
M,N,M,M,M,M,"Number",M,@UO1_point,M,"SAT_SP","Sydney","SAT Setpoint",M,0,N,N,"@UO1",M,"@nubeConnId","@nubeConnId","@UO1","@UO1",N
M,N,N,M,N,M,"Number",M,@UI1,N,"SAP","Sydney","SASP",M,N,M,N,N,N,N,N,N,N,M

EDIT: Added example zinc output

[sjlongland]

An empty cell is a null… they're fundamentally representing the same thing.

[candronikos]

Ok, I actually tested this theory in skyspark and what your saying adds up:

> {a:1}.has("a")
> true

> {a:null}.has("a")
> false