TSLASTN

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Synopsis

TSLASTN key NThis command fetches the latest N entries in the time series that is specified by the given key.The elements are returned in ascending order of timestamps.

• If the given key is associated with non-timeseries data, an error is raised.
• If the given N is not a positive 32 bit integer, an error is raised.

Return Value

Returns a list of timestamp, value pairs for the latest N entries in the time series.

Examples

You can do this as shown below.

1. $ TSADD ts_key 10 v1 20 v2 30 v3 40 v4 50 v5

1. "OK"

1. $ TSLASTN ts_key 2

1. 1) "40"
2. 2) "v4"
3. 3) "50"
4. 4) "v5"

1. $ TSLASTN ts_key 3

1. 1) "30"
2. 2) "v3"
3. 3) "40"
4. 4) "v4"
5. 5) "50"
6. 6) "v5"

1. $ TSLASTN ts_key 9999999999

1. (error) ERR tslastn: limit field 9999999999 is not within valid bounds

1. $ TSLASTN ts_key 0

1. (error) ERR tslastn: limit field 0 is not within valid bounds

1. $ TSLASTN ts_key -1

1. (error) ERR tslastn: limit field -1 is not within valid bounds

See Also

tsadd, tsget, tsrem,tsrangebytime, tsrangebytime, tscard