Hi all, I'm trying to write a query to select random values from a set of 'GROUP BY' ....see the scenario below to understand the problem here (the actual problem cannot be discussed here so i'm taking an example scenario)
Assume there is a table id | name | year_of_birth query: I want to select for each year_of_birth a random name. --> so i do a group by year_of_birth, now i have a set of names, is there any function to select just one name from these set of names. The current approach i'm using to solve this problem is 1) getting these names in a single string using a custom function 'group_concat' 2) Convert the single string into an array 3) use postgresql random function to generate a random number 4) us the random number to select a element from the array previously created. The solution is there but it's kinda hack, is there any other better way of solving this problem. Thanks, Sumeet
