{ "HSET": { "summary": "Creates or modifies the value of a field in a hash.", "complexity": "O(1) for each field/value pair added, so O(N) to add N field/value pairs when the command is called with multiple field/value pairs.", "group": "hash", "since": "2.0.0", "arity": -4, "function": "hsetCommand", "history": [ [ "4.0.0", "Accepts multiple `field` and `value` arguments." ] ], "command_flags": [ "WRITE", "DENYOOM", "FAST" ], "acl_categories": [ "HASH" ], "key_specs": [ { "flags": [ "RW", "UPDATE" ], "begin_search": { "index": { "pos": 1 } }, "find_keys": { "range": { "lastkey": 0, "step": 1, "limit": 0 } } } ], "reply_schema": { "description": "The number of fields that were added", "type": "integer" }, "arguments": [ { "name": "key", "type": "key", "key_spec_index": 0 }, { "name": "data", "type": "block", "multiple": true, "arguments": [ { "name": "field", "type": "string" }, { "name": "value", "type": "string" } ] } ] } }