Major Description
AntiJoin (M)
The antijoin operator works similarly to the filter operator. However, the exclusion or inclusion of a particular record is based on whether or not there is a match in the mask record stream. If a match is found in the mask record stream based on the provided conditions, the input record is excluded from output. In the case that no match is found within the mask stream, the input record is passed through untouched.
{ @id†: <opref>, op: “antijoin”,
input: <input>,
mask: <input>,
conditions: [
{relationship: <reltype>, left: <expr>, right: <expr>}
, ...
]
}