ST_complement¶
Compute the complement of a in b (the elements of b that are not in a).
-
c = ST_complement(a, b) -
c = ST_complement(a, b, rsNull)
Return Value
c is a vector with the elements of b that are not in a or 0 (for real) or “” (for string).
Parameters
-
a a is a string or real matrix.
-
b b is a string or real matrix.
-
rsNull rsNull is the return value if b contains only elements that are in a. The parameter is only used with real matrices.
Example
* ST_complement([2,3,5,7], [2,4,9])
* 4.000 9.000
*
* ST_complement(["one", "two", "three"], ["two", "four", "five"])'
four
five
*
* ST_complement([2,5], [1,2,3,4,5,6])
1.0000 3.0000 4.0000 6.0000
See also
id-975428