Hi, On 2023-04-04 09:03:45 -0700, Andres Freund wrote: > For quite a while I'd been wishing to see *differential* code coverage, to see > what changed in code coverage between two major releases. Unfortunately lcov > didn't provide that. A few months ago a PR for it has been merged into lcov > ([1]). There hasn't yet been a release though. And the feature definitely has > some rough edges, still. > > I'm planning to generate the 15->16 differential code coverage, once the > feature freeze has been reached. > > Another nice thing provided by the in-development lcov is hierarchical > output. I find that to be much easier to navigate than the current flat > output, as e.g. used on coverage.postgresql.org. I've generated the output for 15 vs HEAD, now that we're past feature freeze. Simpler version: https://anarazel.de/postgres/cov/15-vs-HEAD-01/ Version that tries to date the source lines using information from git: https://anarazel.de/postgres/cov/15-vs-HEAD-02/ The various abbreviations are explained (somewhat) if you hover over them. There's a few interesting bit of new code not covered by teests, that should easily be coverable: https://anarazel.de/postgres/cov/15-vs-HEAD-01/src/bin/pg_dump/pg_dumpall.c.gcov.html#1014 https://anarazel.de/postgres/cov/15-vs-HEAD-01/src/backend/utils/adt/array_userfuncs.c.gcov.html#675 https://anarazel.de/postgres/cov/15-vs-HEAD-01/src/backend/utils/adt/array_userfuncs.c.gcov.html#921 https://anarazel.de/postgres/cov/15-vs-HEAD-01/src/backend/utils/adt/pg_locale.c.gcov.html#1964 https://anarazel.de/postgres/cov/15-vs-HEAD-01/src/backend/utils/adt/pg_locale.c.gcov.html#2219 https://anarazel.de/postgres/cov/15-vs-HEAD-01/src/backend/parser/parse_expr.c.gcov.html#3108 https://anarazel.de/postgres/cov/15-vs-HEAD-01/src/backend/nodes/nodeFuncs.c.gcov.html#1480 https://anarazel.de/postgres/cov/15-vs-HEAD-01/src/backend/nodes/nodeFuncs.c.gcov.html#1652 https://anarazel.de/postgres/cov/15-vs-HEAD-01/src/backend/optimizer/util/plancat.c.gcov.html#348 https://anarazel.de/postgres/cov/15-vs-HEAD-01/contrib/postgres_fdw/connection.c.gcov.html#1316 https://anarazel.de/postgres/cov/15-vs-HEAD-01/contrib/postgres_fdw/deparse.c.gcov.html#399 Greetings, Andres Freund
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