On Tue, 30 Mar 2021 at 14:30, Joel Jacobson <j...@compiler.org> wrote:
If the expression ends with a column_name, > you get the value for the column. > > If the expression ends with a constraint_name, > you get the referenced table as a record. > Can’t you just leave off the “ends with a column_name” part? If you want one of its columns, just put .column_name: table -> constraint -> ... -> constraint . column_name Then you know that -> expects a constraint_name and only that to its right. Also, should the join be a left join, which would therefore return a NULL when there is no matching record? Or could we have a variation such as ->? to give a left join (NULL when no matching record) with -> using an inner join (record is not included in result when no matching record). For the record I would find something like this quite useful. I constantly find myself joining in code lookup tables and the like, and while from a mathematical view it’s just another join, explicitly listing the table in the FROM clause of a large query does not assist with readability to say the least.
