Severity is an enumerated list regarding output diagnostics from query validation.

Table: Severity

ParameterTypeRequired[a]DefaultDescription
Errorbooleanyes The query validation's diagnosis returned an error.
Hintbooleanyes The query validation's diagnosis is a hint.
Informationbooleanyes The query validation's diagnosis contains information, only.
Warningbooleanyes The severity of the query validation's diagnosis is a warning.

[a] Some arguments may be required, as indicated in this column. For some fields, this column indicates that a result will always be returned for it.