On Wed, May 5, 2021 at 7:09 AM Dilip Kumar <dilipbal...@gmail.com> wrote: > So basically, if we have to write this test case in pg_dump then we > will have to use lz4 which means it will generate different output > --with-lz4 vs --without-lz4. With a simple regress test it easy to > deal with such cases by keeping multiple .out files but I am not sure > can we do this easily with pg_dump test without adding much > complexity?
TAP tests have a facility for conditionally skipping tests; see perldoc Test::More. That's actually superior to what you can do with pg_regress. We'd need to come up with some logic to determine when to skip or not, though. Perhaps the easiest method would be to have the relevant Perl script try to create a table with an lz4 column. If that works, then perform the LZ4-based tests. If it fails, check the error message. If it says anything that LZ4 is not supported by this build, skip those tests. If it says anything else, die. -- Robert Haas EDB: http://www.enterprisedb.com
