Oh ... duh. We've been assuming that the strtoint change broke it, but that's wrong. The test case that is failing is new as of yesterday, and the correct answer is that it's never worked on Windows. See
https://git.postgresql.org/gitweb/?p=postgresql.git&a=commitdiff&h=3b7ab4380440d7b14ee390fabf39f6d87d7491e2 I think what's wrong is that src/tools/msvc/ecpg_regression.proj needs to be taught that tests under ecpg/test/compat-oracle need to be run with "-C ORACLE". Neither that directory nor that switch existed before yesterday. There's already stuff in there that knows about "-C INFORMIX", but beyond seeing the switch it looks like line noise to me, so I'm not volunteering to fix it. regards, tom lane