[HACKERS] TAP tests - installcheck vs check

AFAICT, unlike the pg_regress checks, which in the installcheck case run
against a running instance of postgres, for TAP tests the only
difference is that that for the check case a temp install is done,
possibly with some extra contrib modules. Is that correct? If is is, why
aren't we providing an installcheck target for tests like recover. In at
least one case (buildfarmn jacana) installs are quite expensive (2 or 3
minutes) and if they are pointless as seems to be the case here why
can't we just avoid them?


cheers

andrew

-- 
Andrew Dunstan                https://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services