ZUNIONSTORE

Writes the union between sets to a new key.

Arguments

destination

string

required

The key to write the union to.

keys

integer

required

How many keys to compare.

keys

string | string[]

required

The keys to compare.

options

aggregate

sum | min | max

The aggregation method.

weight

number

The weight to apply to each key.

weights

number[]

The weights to apply to each key.

Response

The number of elements in the resulting set.