Don't treat null values as same

[LYSTURM]

Describe the question I'm testing zingg in a project where one column has many null values. Ideally if values in that column are an exact match, the records match, but that's not the case when the value is null. I read in the docs zingg treats nulls as matches by default - is there a way to turn this off?

[sonalgoyal]

Nulls are treated as default matches because in most cases of matches in real world data, one or two attribute is missing from the data and the rest are similar. You can signal to the models by labeling differently and using the NULL_OR_N+ BLANK match type along with your other match type for the nullable column. https://docs.zingg.ai/zingg0.4.0/stepbystep/configuration/field-definitions#showconcise

HTH

[LYSTURM]

Thank you, that's clear. I was a little unsure about the NULL_OR_N+BLANK from the docs, but this makes sense. Appreciate it!