<p>Hi all,</p>
<p> </p>
<p>my DataSet is a sql query (postgres DB). </p>
<p>There a two columns in table. First column is 'order', second 'creation_time'.</p>
<p>There are different rows with the same value for 'order'.</p>
<p> </p>
<p>My intention is to summarize all values from 'creation_time' for each order + the value of the first row of the next order.</p>
<p> </p>
<p>There should be an output in a table with a third column 'sum'.</p>
<p>Might there is a possibility to create a new data field an execute an foor loop in javascript within (loop for each order + 1 ..) </p>
<p> </p>
<p>I´m very grateful for every helpful idea.</p>
<p> </p>
<p>Thanking you in advance.</p>
<p> </p>
<p>Best regards,</p>
<p>Martin</p>
