Hello: When I create a query rule of all rows of a CDT that contains

forum.appian.com/.../e-103475
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The comment left by Eduardo certainly works. The solution uses apply to loop through every element in the one-to-many nested CDT and build the array of elements. I agree that it works, but the performance is dreadfully slow for large data sets, which is a definite possibility for our data requirements. The point of this topic on the Appian forum to point out something that logically should be possible, but results in an error. Using a looping function would be much slower in almost all cases than having Appian moving the entire dataset through memory. Thank you.

Marky ..even i'm facing the same issue at multiple times in my web service calls
Any workable solution you were able to find to suffice this requirement

The only way is to iterate through every element using the looping functions ( apply ). As far as I can tell this is a problem inside of Appian, because logically there should not be an issue.

True Marky .. even i have to use apply function numerous times for web service orchestration