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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2016-02-07 16:02:44 -0500 |
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| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2016-02-07 16:02:44 -0500 |
| commit | 65f1510a82a2e792b8b0c4ffacdb4e996410d943 (patch) | |
| tree | e8d6976ddea7b42cd00c555bd724744ae3a1b6f8 /src/backend/regex/regexec.c | |
| parent | 82406d6ff1aa9f2e77536d91492a2d2b7e20b5c7 (diff) | |
| download | postgresql-65f1510a82a2e792b8b0c4ffacdb4e996410d943.tar.gz postgresql-65f1510a82a2e792b8b0c4ffacdb4e996410d943.zip | |
Improve documentation about PRIMARY KEY constraints.
Get rid of the false implication that PRIMARY KEY is exactly equivalent to
UNIQUE + NOT NULL. That was more-or-less true at one time in our
implementation, but the standard doesn't say that, and we've grown various
features (many of them required by spec) that treat a pkey differently from
less-formal constraints. Per recent discussion on pgsql-general.
I failed to resist the temptation to do some other wordsmithing in the
same area.
Diffstat (limited to 'src/backend/regex/regexec.c')
0 files changed, 0 insertions, 0 deletions