$max - Upstash Documentation

$max returns the maximum field value across matching documents.

If missing is set, missing fields are treated as that value.

Field must be FAST.

Argument	Type	Required	Description
`field`	`string`	Yes	Field to aggregate.
`missing`	`number`	No	Fallback value for missing fields.

await index.aggregate({  aggregations: {    most_expensive: { $max: { field: "price", missing: 0 } },  },});

index.aggregate(    aggregations={"most_expensive": {"$max": {"field": "price", "missing": 0}}})

SEARCH.AGGREGATE products '{}' '{"most_expensive": {"$max": {"field": "price", "missing": 0}}}'

{ "most_expensive": { "value": 80 } }

value can be null when no values are available.