Im trying to make a query that help me get a user by its username. What i want to do is to check if the given username is unique. so what i thought about is to uppercase the username when i do my select request and compare it with an uppercase of the given username. This is what i tried:
SQL("select * from utilisateur where upper(pseudo) = {pseudo}").on(
'pseudo -> pseudo.toUpperCase
).as(Utilisateur.utilisateur.singleOpt)
but it get this error:
[RuntimeException: SqlMappingError(too many rows when expecting a single one)]
I tried this too:
SQL("select * from utilisateur where ucase(pseudo) = {pseudo}").on(
'pseudo -> pseudo.toUpperCase
).as(Utilisateur.utilisateur.singleOpt)
and i got this error:
[PSQLException: ERROR: function ucase(character varying) does not exist Indice : No function matches the given name and argument types. You might need to add explicit type casts. Position : 33]
What should i do ?
PS:Im using PostgreSQL 9.1