06310178ef
Extend xfunc.sgml's discussion of set-returning functions to show an example of using LATERAL, and recommend that over putting SRFs in the targetlist. In passing, reword func.sgml's section on set-returning functions so that it doesn't claim that the functions listed therein are all the built-in set-returning functions. That hasn't been true for a long time, and trying to make it so doesn't seem like it would be an improvement. (Perhaps we should rename that section?) Both per suggestions from Merlin Moncure.
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