TS.QUERYINDEX

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)'.

Create a set of sensors to measure temperature and humidity in your study and kitchen.

127.0.0.1:6379> TS.CREATE telemetry:study:temperature LABELS room study type temperature
OK
127.0.0.1:6379> TS.CREATE telemetry:study:humidity LABELS room study type humidity
OK
127.0.0.1:6379> TS.CREATE telemetry:kitchen:temperature LABELS room kitchen type temperature
OK
127.0.0.1:6379> TS.CREATE telemetry:kitchen:humidity LABELS room kitchen type humidity
OK

Retrieve keys of all time series representing sensors located in the kitchen.

127.0.0.1:6379> TS.QUERYINDEX room=kitchen
1) "telemetry:kitchen:humidity"
2) "telemetry:kitchen:temperature"

To retrieve the keys of all time series representing sensors that measure temperature, use this query:

127.0.0.1:6379> TS.QUERYINDEX type=temperature
1) "telemetry:kitchen:temperature"
2) "telemetry:study:temperature"