The following expression can be used in query input to create dynamic query.
The follow syntax will be replace by a special value define by this Plugin.
| Name | Remark |
|---|---|
| $_timeFrom | The start of the current time range of Dash board. Replace with TIMESTAMP({Dash board start time}) . |
| $_timeTo | The end of the current time range of Dash board. Replace with TIMESTAMP({Dash board end time}) . |
| $_col | Use in Alias patterns. It will be replaced with the specified column name. |
| $_container | Use in Alias patterns. It will be replaced with the specified container name. |
| $_interval | This variable only used in $__timeSampling macro. Value of this variable will scale with the dash board time range. Example: when the dashboard show data in 1 year, $__interval = 1 day when the dashboard show data in 1 day, $__interval = 1 minute |
| $_minInterval | Lower limit of $__interval variable. Defined in Create Data Source screen. |
The follow syntax will be replace by value of a custom variable define by user.
| Name | Remark |
|---|---|
| ${variable name} | Replace with current variable value. |
The follow syntax will be replace by a TQL expression.
| Name | Remark |
|---|---|
| $_timeFilter | Use to limit data. Replace with below condition: {time column} > $__timeFrom AND {time column} < $__timeTo |
| $_rangeFilter | Use to limit regions annotation data. Only use in regions annotation. Replace with below condition: ({start time column} > $__timeFrom AND {start time column} < $__timeTo) OR ({end time column} > $__timeFrom AND {end time column} < $__timeTo) |
| $_timeSampling({column name}, {time interval}) | Replace with below expression: TIME_SAMPLING ({column name}, $__timeFrom, $__timeTo, {time interval value}, {time interval unit}) |