I'm new to sql, if I run this projection on a table, would it return nothing or an error of this projection is not allowed (syntax)? I put all infos of the table and the projection in this picture below to make it easier to read :)
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I'm new to sql, if I run this projection on a table, would it return nothing or an error of this projection is not allowed (syntax)? I put all infos of the table and the projection in this picture below to make it easier to read :)