TS.MGET

filters time series based on their labels and label values. Each filter expression has one of the following syntaxes:

• label!= - the time series has a label named label
• label=value - the time series has a label named label with a value equal to value
• label=(value1,value2,...) - the time series has a label named label with a value equal to one of the values in the list
• label= - the time series does not have a label named label
• label!=value - the time series does not have a label named label with a value equal to value
• label!=(value1,value2,...) - the time series does not have a label named label with a value equal to any of the values in the list

Notes:

• At least one filter expression with a syntax label=value or label=(value1,value2,...) is required.
• Filter expressions are conjunctive. For example, the filter type=temperature room=study means that a time series is a temperature time series of a study room.
• Whitespaces are unallowed in a filter expression except between quotes or double quotes in values - e.g., x="y y" or x='(y y,z z)'.

is used when a time series is a compaction. With LATEST, TS.MGET also reports the compacted value of the latest (possibly partial) bucket, given that this bucket's start time falls within [fromTimestamp, toTimestamp]. Without LATEST, TS.MGET does not report the latest (possibly partial) bucket. When a time series is not a compaction, LATEST is ignored.

The data in the latest bucket of a compaction is possibly partial. A bucket is closed and compacted only upon the arrival of a new sample that opens a new latest bucket. There are cases, however, when the compacted value of the latest (possibly partial) bucket is also required. In such a case, use LATEST.

includes in the reply all label-value pairs representing metadata labels of the time series. If WITHLABELS or SELECTED_LABELS are not specified, by default, an empty list is reported as label-value pairs.

returns a subset of the label-value pairs that represent metadata labels of the time series. Use when a large number of labels exists per series, but only the values of some of the labels are required. If WITHLABELS or SELECTED_LABELS are not specified, by default, an empty list is reported as label-value pairs.

Create time series for temperature in Tel Aviv and Jerusalem, then add different temperature samples.

127.0.0.1:6379> TS.CREATE temp:TLV LABELS type temp location TLV
OK
127.0.0.1:6379> TS.CREATE temp:JLM LABELS type temp location JLM
OK
127.0.0.1:6379> TS.MADD temp:TLV 1000 30 temp:TLV 1010 35 temp:TLV 1020 9999 temp:TLV 1030 40
1) (integer) 1000
2) (integer) 1010
3) (integer) 1020
4) (integer) 1030
127.0.0.1:6379> TS.MADD temp:JLM 1005 30 temp:JLM 1015 35 temp:JLM 1025 9999 temp:JLM 1035 40
1) (integer) 1005
2) (integer) 1015
3) (integer) 1025
4) (integer) 1035

Get all the labels associated with the last sample.

127.0.0.1:6379> TS.MGET WITHLABELS FILTER type=temp
1) 1) "temp:JLM"
   2) 1) 1) "type"
         2) "temp"
      2) 1) "location"
         2) "JLM"
   3) 1) (integer) 1035
      2) 40
2) 1) "temp:TLV"
   2) 1) 1) "type"
         2) "temp"
      2) 1) "location"
         2) "TLV"
   3) 1) (integer) 1030
      2) 40

To get only the location label for each last sample, use SELECTED_LABELS.

127.0.0.1:6379> TS.MGET SELECTED_LABELS location FILTER type=temp
1) 1) "temp:JLM"
   2) 1) 1) "location"
         2) "JLM"
   3) 1) (integer) 1035
      2) 40
2) 1) "temp:TLV"
   2) 1) 1) "location"
         2) "TLV"
   3) 1) (integer) 1030
      2) 40