In that Database Input view: Splunk>Manager>>Data>>Data Inputs>>new, under the Tail Input - Rising Column field, there is a brief explanation:
" Choose a column with an increasing value. Such as a creation or modification timestamp or a sequential identifier. You can also create a trigger to synthesize such a value."
What is intended by "create a trigger to synthesize such a value"? Is it referring to something that can be done in Splunk, or in our database?