min_elem_ifdefined - ObjectVision/GeoDMS GitHub Wiki

Ordering functions minimum element ifdefined

syntax

  • min_elem_ifdefined(a, b, .. , n)

definition

min_elem_ifdefined(a, b, .. , n) is a variant of the min_elem function resulting in defined values if any value of the arguments for an entry in the domain unit is defined. If all arguments contains null values, the resulting value for that entry will be become null.

since version

8.6.5

example

attribute<uint32> min_elem_ifdefinedABC (MDomain) := min_elem_ifdefined(A, B, C);
A(int32) B(int32) C(int32) min_elem_ifdefinedABC
0 1 2 0
1 -1 4 -1
-2 2 2 -2
4 0 7 0
999 111 -5 -5
2 null 1 1
0 1 null 0
null 1 2 1
null null null null

MDomain, nr of rows = 9

see also

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