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Rolling Average Robot Task Times
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Rolling Average Robot Task Times

MediumSQL · PostgreSQL

Problem

UiPath Automation Cloud stores execution telemetry for attended and unattended robots. Write a PostgreSQL query that reports the rolling average execution time for each robot across its current execution and two preceding completed executions.

Requirements

  1. Join robots with robot_task_executions and return the robot name, execution identifier, start time, and execution duration.
  2. Include only executions with status = 'completed' and a non-NULL execution duration.
  3. Calculate a three-row rolling average separately for each robot, ordered by started_at and then execution_id to break timestamp ties.
  4. Return the results in robot and chronological execution order.

Schema

robots
ColumnTypeDescription
robot_idPKINTEGERUnique UiPath robot identifier
robot_nameVARCHAR(100)UiPath robot display name
machine_nameVARCHAR(100)Machine connected to the robot
robot_task_executions
ColumnTypeDescription
execution_idPKINTEGERUnique task execution identifier
robot_idINTEGERRobot that ran the task
task_nameVARCHAR(150)UiPath process or task name
started_atTIMESTAMPExecution start timestamp
execution_time_secondsINTEGERExecution duration in seconds
statusVARCHAR(20)Execution state
Tablesrobotsrobot_task_executions
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