{
  "id": "arinfo",
  "title": "ARINFO",
  "url": "https://redis.io/docs/latest/commands/arinfo/",
  "summary": "Returns metadata about an array.",
  "tags": [
    "docs",
    "develop",
    "stack",
    "oss",
    "rs",
    "rc",
    "oss",
    "kubernetes",
    "clients"
  ],
  "last_updated": "2026-05-25T10:30:01-07:00",
  "page_type": "content",
  "content_hash": "68b5d658c1ed07bc09aae17379ec783adcfe08b661f4cb8bd871e0182c79c378",
  "sections": [
    {
      "id": "overview",
      "title": "Overview",
      "role": "overview",
      "text": "Returns metadata about an array."
    },
    {
      "id": "required-arguments",
      "title": "Required arguments",
      "role": "content",
      "text": "<details open><summary><code>key</code></summary>\n\nThe name of the key that holds the array.\n\n</details>"
    },
    {
      "id": "optional-arguments",
      "title": "Optional arguments",
      "role": "parameters",
      "text": "<details open><summary><code>FULL</code></summary>\n\nWhen present, includes per-slice statistics in the reply: the number of dense and sparse slices and their average sizes and fill rates. Raises the complexity from O(1) to O(N) where N is the number of slices.\n\n</details>"
    },
    {
      "id": "examples",
      "title": "Examples",
      "role": "example",
      "text": "ARMSET myarray 0 \"a\" 1 \"b\" 100 \"c\"\nARINSERT myarray \"d\"\nARINFO myarray"
    },
    {
      "id": "return-information",
      "title": "Return information",
      "role": "returns",
      "text": "**RESP2:**\n\n[Array reply](../../develop/reference/protocol-spec#arrays)\n\n**RESP3:**\n\n[Map reply](../../develop/reference/protocol-spec#maps)"
    }
  ],
  "examples": []
}