Extend SQL function tests lightly

Peter Eisentraut <peter@eisentraut.org>

Commit: 11b80d900fe4297e8e4bc231f6a41b53d604ed9e
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2020-09-05T11:28:05Z
Releases: 14.0
Extend SQL function tests lightly

The basic tests that defined SQL functions didn't actually run the
functions to see if they worked.  Add that, and also fix a minor
mistake in a function that was revealed by this.  (This is not a
question of test coverage, since there are other places where SQL
functions are run, but it is a bit of a silly test design.)

Discussion: https://www.postgresql.org/message-id/flat/1c11f1eb-f00c-43b7-799d-2d44132c02d7@2ndquadrant.com

Files

Discussion