diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2021-05-06 09:59:11 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2021-05-06 09:59:11 -0400 |
| commit | c38cadc0907a8d071b043b2b32b83efa09db38ea (patch) | |
| tree | 3c187229f3ee24a4ddcccd550dcfb9b50fd33062 | |
| parent | 448b02c00515ba9d6683a8a97fe4305604d80028 (diff) | |
| download | postgresql-c38cadc0907a8d071b043b2b32b83efa09db38ea.tar.gz postgresql-c38cadc0907a8d071b043b2b32b83efa09db38ea.zip | |
Doc: trivial wording adjustment.
Improve self-referential foreign key example, per suggestion
from David Johnston.
Discussion: https://postgr.es/m/CAKFQuwZTke7+HUn4YUGqu2+gAPi4Cy18TXMrg_Z5nADkxfPNMw@mail.gmail.com
| -rw-r--r-- | doc/src/sgml/ddl.sgml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/src/sgml/ddl.sgml b/doc/src/sgml/ddl.sgml index 513112a216d..b4648321dc4 100644 --- a/doc/src/sgml/ddl.sgml +++ b/doc/src/sgml/ddl.sgml @@ -956,7 +956,7 @@ CREATE TABLE tree ( ); </programlisting> A top-level node would have NULL <structfield>parent_id</structfield>, - but non-NULL <structfield>parent_id</structfield> entries would be + while non-NULL <structfield>parent_id</structfield> entries would be constrained to reference valid rows of the table. </para> |