system.tag.queryTagCalc/History scripting question

I am trying to use queryTagHistory to do a summation of 8 separate tags. I set up my "paths" as instructed by the help pages. ["tag1","tag2", etc].. I have set the output to a custom property as a dataset. when I look at the dataset to see how the data comes out, it shows 8 separate instances of the start time. how do I get the data table to show only 1 instance of the start time and not 8...


... TIA

Solved.... needed to set returnSize = 1.