join() merges two streams of tables into a single output stream based on columns with equal values. Null values are not considered equal when comparing column values. The resulting schema is the union of the input schemas. The resulting group key is the
@ajetsharwinIn the example below, I use the sample data you provided to generate the desired results. I usearray.from()to build ad hoc streams of tables using the Flux data model, but you can replace these variables usingfrom() |> range() |> filter()calls to query actual data from y...
_measurement == "airSensors") // Join results from previous two queries join(tables: {metric: sensorMetrics, info: sensorInfo}, on: ["sensor_id"]) Copy The result of this query is that the data will be combined into a single table with rows based on the sensor ID of each dataset....
(r)=>r._measurement=="processes"andr._field=="total")// Join memory used with total processes and calculate// the average memory (in MB) used for running processes.join(tables:{mem:memUsed,proc:procTotal},on:["_time","_stop","_start","host"])|>map(fn:(r)=>({_time:r._time...
f1=from(bucket:"example-bucket-1")|>range(start:"-1h")|>filter(fn:(r)=>r._field=="f1")|>drop(columns:"_measurement")f2=from(bucket:"example-bucket-2")|>range(start:"-1h")|>filter(fn:(r)=>r._field=="f2")|>drop(columns:"_measurement")union(tables:[f1,f2])|>pivot(rowKey...
join(tables: {start: startEvents, stop: stopEvents}, on: ["index", "equipmentNumber", "_measurement", "_field", "workplace"]) |> drop(columns: ["event_start", "event_stop", "index", "_value_start", "_value_stop"]) |> rename(columns: {duration_start: "start", duration_stop...
4.2.3、Tables(表) Flux 构造表中的所有数据。当数据从数据源流式传输时,Flux 将其格式化为带注释的逗号分隔值 (CSV),表示表格。然后函数操作或处理它们并输出新表。这使得将函数链接在一起以构建复杂的查询变得容易。 Group keys(组键):每个表都有一个描述表内容的组键。它是一个列列表,表中的每一行都将...
Flux Calculation - Same column, multiple filters and calculate flux 03-07-2023 02:18 PM Hello, I have created a dashboard and my data has a column called "Tax Effect". On my report I have added two matrixs and two filters. Both tables have "tax effect" values how...
(temperature, co, humidity). Additionally, the shape of the data differs slightly between SQL and Flux. SQL queries always return one table while Flux can return multiple tables. You need to use additional functions, likegroup(),union(), orkeep()to yield identical results between the two ...
JOIN sys.dm_exec_query_stats AS query_stats ON r.sql_handle = query_stats.sql_handle AND r.plan_handle = query_stats.plan_handle AND r.statement_start_offset = query_stats.statement_start_offset AND r.statement_end_offset = query_stats.statement_end_offset LEFT JOIN sys....