master
Back out accidental COPY data changes.
Fix GIN to support null keys, empty and null items, and full index scans.
Postgres95 1.01 Distribution - Virgin Sources
Improve key representation for GIN jsonb_ops, and fix existence-search bug.
Avoid regression test cases that fail in locales that sort "v" and "w" equally (in glibc: et_EE, sv_SE, tk_TM). It turns out that this was already taken care of previously by select_1.out, which I had forgotten to update for an unrelated change. But might as well avoid the issue altogether.
Migrate rtree_gist functionality into the core system, and add some basic regression tests for GiST to the standard regression tests. I took the opportunity to add an rtree-equivalent gist opclass for circles; the contrib version only covered boxes and polygons, but indexing circles is very handy for distance searches.
Fix full text search to handle NOT above a phrase search correctly.