Handling of empty arrays

[JDziurlaj]

How should a tableschema aware tool interpret the existence of an empty array ([])?

Should it be considered:

• logically null
• logically not-null (i.e. it meets the required constraint)
• something else

If it is logically null, how should [ null ] be handled?

[rufuspollock]

What's the exact situation - what is the type of the field where this showing up and what constraints are there?

[roll]

Hi @JDziurlaj,

The empty array is not null unless its string representation is IN the missing values (for textual source like csv/etc) - https://specs.frictionlessdata.io/table-schema/#missing-values

So it will pass the required constraint but we also have minLength constraint to handle cases like this.