db: Follow-up to [9210], re-added `PRIMARY KEY` in addition to `SERIAL` for PostgreSQL (comment:39:ticket:6466).
db: Follow-up to [9210], re-added `PRIMARY KEY` in addition to `SERIAL` for PostgreSQL (comment:39:ticket:6466).


git-svn-id: eda3d06fcef731589ace1b284159cead3416df9b@9213 af82e41b-90c4-0310-8c96-b1721e28e2e2

netjunki/trac-Pygit2,jun66j5/trac-ja,walty8/trac,walty8/trac,walty8/trac,jun66j5/trac-ja,walty8/trac,jun66j5/trac-ja,netjunki/trac-Pygit2,jun66j5/trac-ja,netjunki/trac-Pygit2