> You mean that the default generated error messages contain some more
> information I presume, like the table name and the constraint name ?
Even better, the information is *structured* afaik.
> I think I noticed that already, and since I had time since yesterday
> evening, I thought things over and came to the conclusion that this
> mechanism at least gives an escape hatch, since it is possible to give a
> name to each constraint, and then use this name as an index to get a
> proper error message.
For check constraints you can even name them yourself during
table creation.
Karsten
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