We were not building timescaledb with debug enabled in the sanitizer
tests, causing tests which needed debug symbols to fail. This commit
changes the sanitizer tests to include such symbols. We still enable
optimizations, as that results in more realistic build environment for
memory tests.
This commit also ensures some tests which should only be run in debug
builds are in fact only run in debug builds.
With the forthcoming new sanitizer image running tests in parallel
causes machines to run out of resources, and fail tests spuriously
This commit forces test_sanitizers.sh to run tests sequentially to
prevent this.
This commit adds a sanitizer run script, and updates travis to
run it in our nightly builds. Valgrind has been very slow and
unstable, so much so that we only run it during pre-release
tests, and even then it doesn't necissarily provide useful
output. The sanitizer tests run about 10x faster, and seem
stable.
We currently only run ASan and UBSan, as MSan has too many
issues within postgres's own initialization functions. As MSan
cannot be added to a binary that enables ASan, it would require
separate jobs anyway.
