Sorting difference in version 10 vs 13

[Akheel Ahmed <akheel.mailing.list@xxxxxxxxx>]

Hi


I have performed logical replication from a 10.18 to 13.4.

in 13.4, order by asc gives underscores higher than other characters. 
all the LC parameters are identical across both instances.

Am I missing anything else?


Help appreciated.

Thanks