pg_regress compares expected and actual output using "diff -w" (a/k/a --ignore-all-space). We have always done this, and I think the idea was to avoid getting a lot of useless diff noise when the only real difference is that one column value in a tabular display is wider than expected. I'm wondering if it's such a good idea though. I just noticed that -w was masking a couple of recent changes in the regression outputs, notably this one in create_cast:
SELECT 1234::int4::casttesttype; -- No cast yet, should fail ERROR: cannot cast type integer to casttesttype LINE 1: SELECT 1234::int4::casttesttype; ! ^ CREATE CAST (int4 AS casttesttype) WITH INOUT; SELECT 1234::int4::casttesttype; -- Should work now casttesttype --- 53,59 ---- SELECT 1234::int4::casttesttype; -- No cast yet, should fail ERROR: cannot cast type integer to casttesttype LINE 1: SELECT 1234::int4::casttesttype; ! ^ CREATE CAST (int4 AS casttesttype) WITH INOUT; SELECT 1234::int4::casttesttype; -- Should work now casttesttype If one supposes that one part of what this test is doing is checking which part of the construct is pointed to by the error cursor, then using -w in the check renders it useless. I'm thinking maybe we should remove -w. Comments? regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers