A Table of Measure
The range clause allows to filter by time creating a time windodw
The filter clause reduces the ammount of records and can be applied on the measurements, fields, tags, and field/tag keys.
Flux aggregate functions are transformations aggregate values from input tables in some way.
Flux selector functions are transformations that return one or more record per input table.
Conditional expressions evaluate a boolean-valued condition. If the result is true, the expression that follows the then keyword is evaluated and returned.
aggregateWindow() downsamples data by grouping data into fixed windows of time and applying an aggregate or selector function to each window.
NOTE The flag
can be used to consider only the windows that contains data (its default value is
Map and Custom Functions
clause maintains alla the original columns and adds the new one.
Custom pipe forwardable function
Most Flux functions manipulate data piped-forward into the function. In order for a custom function to process piped-forward data, one of the function parameters must capture the input tables using the
The join() function merges two or more input streams, whose values are equal on a set of common columns, into a single output stream.
FluxLang 101 Cheat Sheet by rictomm
The basic functionalities of Flux Language
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