{ "XDEL": { "summary": "Returns the number of messages after removing them from a stream.", "complexity": "O(1) for each single item to delete in the stream, regardless of the stream size.", "group": "stream", "since": "5.0.0", "arity": -3, "function": "xdelCommand", "command_flags": [ "WRITE", "FAST" ], "acl_categories": [ "STREAM" ], "key_specs": [ { "flags": [ "RW", "DELETE" ], "begin_search": { "index": { "pos": 1 } }, "find_keys": { "range": { "lastkey": 0, "step": 1, "limit": 0 } } } ], "arguments": [ { "name": "key", "type": "key", "key_spec_index": 0 }, { "name": "ID", "type": "string", "multiple": true } ], "reply_schema": { "description": "The number of entries actually deleted", "type": "integer", "minimum": 0 } } }