{
  "comment" : "This is generated by ESQL's AbstractFunctionTestCase. Do not edit it. See ../README.md for how to regenerate it.",
  "type" : "agg",
  "name" : "absent",
  "description" : "Returns true if the input expression yields no non-null values within the current aggregation context. Otherwise it returns false.",
  "signatures" : [
    {
      "params" : [
        {
          "name" : "field",
          "type" : "aggregate_metric_double",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "boolean",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "cartesian_point",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "cartesian_shape",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "date",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "date_nanos",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "dense_vector",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "double",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "exponential_histogram",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "geo_point",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "geo_shape",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "geohash",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "geohex",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "geotile",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "histogram",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "integer",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "ip",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "keyword",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "long",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "tdigest",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "text",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "unsigned_long",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    },
    {
      "params" : [
        {
          "name" : "field",
          "type" : "version",
          "optional" : false,
          "description" : "Expression that outputs values to be checked for absence."
        }
      ],
      "variadic" : false,
      "returnType" : "boolean"
    }
  ],
  "examples" : [
    "FROM employees\n| WHERE emp_no == 10020\n| STATS is_absent = ABSENT(languages)",
    "FROM employees\n| STATS is_absent = ABSENT(salary) BY languages",
    "FROM employees\n| WHERE emp_no == 10020\n| STATS is_absent = TO_INTEGER(ABSENT(languages))"
  ],
  "preview" : false,
  "snapshot_only" : false
}