Clarify wording of foreign key documentation to mention null entries as
authorBruce Momjian <bruce@momjian.us>
Wed, 12 Oct 2011 20:58:39 +0000 (16:58 -0400)
committerBruce Momjian <bruce@momjian.us>
Wed, 12 Oct 2011 20:58:39 +0000 (16:58 -0400)
commitf2b36d8e10b628ffe0ba73c90826c3719ea20176
treeee907a111c0d0416227ddd51be5953690206ac13
parent484af9b376f3dca3805932d5c40c45ecf6fca0d4
Clarify wording of foreign key documentation to mention null entries as
not matching the primary key.

Report from Marek.Balgar@seznam.cz
doc/src/sgml/ddl.sgml