Re: [PATCH] Add pretty-printed XML output option

diff -U3 /tmp/cirrus-ci-build/src/test/regress/expected/xml.out /tmp/cirrus-ci-build/build/testrun/regress/regress/results/xml.out
--- /tmp/cirrus-ci-build/src/test/regress/expected/xml.out	2023-02-12 09:02:57.077569000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/regress/regress/results/xml.out	2023-02-12 09:05:45.148100000 +0000
@@ -1695,10 +1695,7 @@ -- XML format: empty string SELECT xmlformat(''); ERROR:  invalid XML document
-DETAIL:  line 1: switching encoding : no input
-
-^
-line 1: Document is empty
+DETAIL:  line 1: Document is empty  ^ -- XML format: invalid string (whitespaces)

I couldn't figure out why the error messages are different -- I'm wondering if the issue is the test environment itself. I just removed the troubling test case for now

SELECT xmlformat('');

v7 attached.

Thanks for reviewing this patch!

Best, Jim