How to iterate the pipeline

[swatifunde]

Hello Community,

I want to iterate the pipeline when expression get true,below is my current pipeline design

In this pipeline I am checking count of Null values of column if all values Null then pipeline wait for 20 Sec and again try to fetch data from system, If its not Null then simply load the data into Snowflake.
My requirement is that after 20 Sec pipeline should check if there is full data available or not in continues loop.

Can you please advise me here how can I iterate this pipeline

[koryknick]

@swatifunde - you could accomplish this using a child pipeline with the Select snap to get a count of null values and create a triggered task for it. Then call that triggered task via REST Get snap using pagination to continue calling until you get the response you want (i.e. Not Null) before completing the rest of the steps to load the data. Note that the REST Get will return documents even for null counts so you need to do something with that output - perhaps a Filter, Router, or Tail snap.

[swatifunde]

Thank you for response, I am trying this method but I am not sure how to set pagination here, what will be value here

In my design there is LOGOS column who will get all Null values if there is partial data on source and I have to keep checking for full data so can you advise me here

[koryknick · Accepted solution]

@swatifunde - Here is an example that calls a triggered task until a desired result is returned. I’ve also attached the pipeline that it is calling so you can correlate the query results with the Has Next property in the REST Get.
Community 13497 - Child - Query Snowflake Table_2022_09_28.slp (2.7 KB)
Community 13497 - Poll Snowflake Table_2022_09_28.slp (6.6 KB)

Please note that calling a triggered task on an extremely frequent schedule will create a large amount of noise in your Dashboard. It is possible you may also experience some occasional failures calling the task due to network traffic. If your org has Ultra Tasks enabled, this would resolve the additional traffic in Dashboard and has excellent response since it avoids instantiating a new pipeline with each call.

[swatifunde]

I tried to implement this solution but somehow I am getting below error