{
  "comment" : "This is generated by ESQL's AbstractFunctionTestCase. Do not edit it. See ../README.md for how to regenerate it.",
  "type" : "agg",
  "name" : "first",
  "description" : "Calculates the earliest value of a field.",
  "signatures" : [
    {
      "params" : [
        {
          "name" : "value",
          "type" : "double",
          "optional" : false,
          "description" : "Values to return"
        },
        {
          "name" : "sort",
          "type" : "date",
          "optional" : false,
          "description" : "Sort key"
        }
      ],
      "variadic" : false,
      "returnType" : "double"
    },
    {
      "params" : [
        {
          "name" : "value",
          "type" : "double",
          "optional" : false,
          "description" : "Values to return"
        },
        {
          "name" : "sort",
          "type" : "date_nanos",
          "optional" : false,
          "description" : "Sort key"
        }
      ],
      "variadic" : false,
      "returnType" : "double"
    },
    {
      "params" : [
        {
          "name" : "value",
          "type" : "integer",
          "optional" : false,
          "description" : "Values to return"
        },
        {
          "name" : "sort",
          "type" : "date",
          "optional" : false,
          "description" : "Sort key"
        }
      ],
      "variadic" : false,
      "returnType" : "integer"
    },
    {
      "params" : [
        {
          "name" : "value",
          "type" : "integer",
          "optional" : false,
          "description" : "Values to return"
        },
        {
          "name" : "sort",
          "type" : "date_nanos",
          "optional" : false,
          "description" : "Sort key"
        }
      ],
      "variadic" : false,
      "returnType" : "integer"
    },
    {
      "params" : [
        {
          "name" : "value",
          "type" : "keyword",
          "optional" : false,
          "description" : "Values to return"
        },
        {
          "name" : "sort",
          "type" : "date",
          "optional" : false,
          "description" : "Sort key"
        }
      ],
      "variadic" : false,
      "returnType" : "keyword"
    },
    {
      "params" : [
        {
          "name" : "value",
          "type" : "keyword",
          "optional" : false,
          "description" : "Values to return"
        },
        {
          "name" : "sort",
          "type" : "date_nanos",
          "optional" : false,
          "description" : "Sort key"
        }
      ],
      "variadic" : false,
      "returnType" : "keyword"
    },
    {
      "params" : [
        {
          "name" : "value",
          "type" : "long",
          "optional" : false,
          "description" : "Values to return"
        },
        {
          "name" : "sort",
          "type" : "date",
          "optional" : false,
          "description" : "Sort key"
        }
      ],
      "variadic" : false,
      "returnType" : "long"
    },
    {
      "params" : [
        {
          "name" : "value",
          "type" : "long",
          "optional" : false,
          "description" : "Values to return"
        },
        {
          "name" : "sort",
          "type" : "date_nanos",
          "optional" : false,
          "description" : "Sort key"
        }
      ],
      "variadic" : false,
      "returnType" : "long"
    },
    {
      "params" : [
        {
          "name" : "value",
          "type" : "text",
          "optional" : false,
          "description" : "Values to return"
        },
        {
          "name" : "sort",
          "type" : "date",
          "optional" : false,
          "description" : "Sort key"
        }
      ],
      "variadic" : false,
      "returnType" : "keyword"
    },
    {
      "params" : [
        {
          "name" : "value",
          "type" : "text",
          "optional" : false,
          "description" : "Values to return"
        },
        {
          "name" : "sort",
          "type" : "date_nanos",
          "optional" : false,
          "description" : "Sort key"
        }
      ],
      "variadic" : false,
      "returnType" : "keyword"
    }
  ],
  "examples" : [
    "FROM k8s\n| STATS first_bytes_in = FIRST(network.bytes_in, @timestamp) BY pod\n| SORT pod ASC"
  ],
  "preview" : false,
  "snapshot_only" : true
}