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| author | Bruce Momjian <bruce@momjian.us> | 2002-09-02 06:20:53 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2002-09-02 06:20:53 +0000 |
| commit | 81efc826081b7889753c449cf29dd72f75690047 (patch) | |
| tree | c8d8f6acab955099f9b7d9b3d107b08ae0404151 /src/tutorial/basics.source | |
| parent | f1c1685b391e76c3784c8809eeb5c47df04016c0 (diff) | |
| download | postgresql-81efc826081b7889753c449cf29dd72f75690047.tar.gz postgresql-81efc826081b7889753c449cf29dd72f75690047.zip | |
This patch fixes a minor inaccuracy in the documentation: NOT NULL is
not synonymous with CHECK (xxx IS NOT NULL) -- for example, consider
ALTER TABLE ADD PRIMARY KEY, which checks for 'NOT NULL', not a check
constraint.
Neil Conway
Diffstat (limited to 'src/tutorial/basics.source')
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