Hubert FONGARNAND <informatique.internet@fiducial.fr> writes:
> select count(*)=20
> from NODE =20
> where NODE_ID=20
> in (select NODE_ID from NODE where NODE_TRASH=3D0 limit 1 offset 0)
> ERREUR: failed to find unique expression in subplan tlist
Please provide a *complete* example --- I am unable to reproduce this.
regards, tom lane