{ "HDEL": { "summary": "Deletes one or more fields and their values from a hash. Deletes the hash if no fields remain.", "complexity": "O(N) where N is the number of fields to be removed.", "group": "hash", "since": "2.0.0", "arity": -3, "function": "hdelCommand", "history": [ [ "2.4.0", "Accepts multiple `field` arguments." ] ], "command_flags": [ "WRITE", "FAST" ], "acl_categories": [ "HASH" ], "key_specs": [ { "flags": [ "RW", "DELETE" ], "begin_search": { "index": { "pos": 1 } }, "find_keys": { "range": { "lastkey": 0, "step": 1, "limit": 0 } } } ], "reply_schema": { "type": "integer", "description": "The number of fields that were removed from the hash." }, "arguments": [ { "name": "key", "type": "key", "key_spec_index": 0 }, { "name": "field", "type": "string", "multiple": true } ] } }