src/commands/zadd.json


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{
    "ZADD": {
        "summary": "Adds one or more members to a sorted set, or updates their scores. Creates the key if it doesn't exist.",
        "complexity": "O(log(N)) for each item added, where N is the number of elements in the sorted set.",
        "group": "sorted_set",
        "since": "1.2.0",
        "arity": -4,
        "function": "zaddCommand",
        "history": [
            [
                "2.4.0",
                "Accepts multiple elements."
            ],
            [
                "3.0.2",
                "Added the `XX`, `NX`, `CH` and `INCR` options."
            ],
            [
                "6.2.0",
                "Added the `GT` and `LT` options."
            ]
        ],
        "command_flags": [
            "WRITE",
            "DENYOOM",
            "FAST"
        ],
        "acl_categories": [
            "SORTEDSET"
        ],
        "key_specs": [
            {
                "flags": [
                    "RW",
                    "UPDATE"
                ],
                "begin_search": {
                    "index": {
                        "pos": 1
                    }
                },
                "find_keys": {
                    "range": {
                        "lastkey": 0,
                        "step": 1,
                        "limit": 0
                    }
                }
            }
        ],
        "reply_schema": {
            "anyOf":[
                {
                    "description": "Operation was aborted (conflict with one of the `XX`/`NX`/`LT`/`GT` options).",
                    "type": "null"
                },
                {
                    "description": "The number of new members (when the `CH` option is not used)",
                    "type": "integer"
                },
                {
                    "description": "The number of new or updated members (when the `CH` option is used)",
                    "type": "integer"
                },
                {
                    "description": "The updated score of the member (when the `INCR` option is used)",
                    "type": "number"
                }
            ]
        },
        "arguments": [
            {
                "name": "key",
                "type": "key",
                "key_spec_index": 0
            },
            {
                "name": "condition",
                "type": "oneof",
                "optional": true,
                "since": "3.0.2",
                "arguments": [
                    {
                        "name": "nx",
                        "type": "pure-token",
                        "token": "NX"
                    },
                    {
                        "name": "xx",
                        "type": "pure-token",
                        "token": "XX"
                    }
                ]
            },
            {
                "name": "comparison",
                "type": "oneof",
                "optional": true,
                "since": "6.2.0",
                "arguments": [
                    {
                        "name": "gt",
                        "type": "pure-token",
                        "token": "GT"
                    },
                    {
                        "name": "lt",
                        "type": "pure-token",
                        "token": "LT"
                    }
                ]
            },
            {
                "name": "change",
                "token": "CH",
                "type": "pure-token",
                "optional": true,
                "since": "3.0.2"
            },
            {
                "name": "increment",
                "token": "INCR",
                "type": "pure-token",
                "optional": true,
                "since": "3.0.2"
            },
            {
                "name": "data",
                "type": "block",
                "multiple": true,
                "arguments": [
                    {
                        "name": "score",
                        "type": "double"
                    },
                    {
                        "name": "member",
                        "type": "string"
                    }
                ]
            }
        ]
    }
}