Which version of Postgres are you using?
El mié, 27 de nov de 2024, 00:14, Sajjad Abid <abidsajjad(at)gmail(dot)com>
escribió:
> A column is character varying(50), also on this column a unique
> constraint is defined, but I found some duplicate values in this column for
> some records
> user_name character varying(50)
> CONSTRAINT user_name_unq UNIQUE ( user_name )
>
> Kindly help me to resolve this issue.
>
> --
>
>
> *Thanks & Regards, Sajjad Abid*
>