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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2019-12-11 15:53:36 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2019-12-11 15:53:36 -0500 |
| commit | 49b83f6474349ecc756348f422003f447a5058bf (patch) | |
| tree | 3a03049d46e50a01956f44388d9af664a1bb1f05 /doc/src/sgml/ref/create_table.sgml | |
| parent | 2ed302ab97034a683816a3d6610e03345e6aef3b (diff) | |
Doc: back-patch documentation about limitations of CHECK constraints.
Back-patch commits 36d442a25 and 1f66c657f into all supported
branches. I'd considered doing this when putting in the latter
commit, but failed to pull the trigger. Now that we've had an
actual field complaint about the lack of such docs, let's do it.
Per bug #16158 from Piotr Jander. Original patches by Lætitia Avrot,
Patrick Francelle, and me.
Discussion: https://postgr.es/m/16158-7ccf2f74b3d655db@postgresql.org
Diffstat (limited to 'doc/src/sgml/ref/create_table.sgml')
| -rw-r--r-- | doc/src/sgml/ref/create_table.sgml | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml index 7cadd1a6aed..4f27daf1ae6 100644 --- a/doc/src/sgml/ref/create_table.sgml +++ b/doc/src/sgml/ref/create_table.sgml @@ -698,7 +698,8 @@ WITH ( MODULUS <replaceable class="parameter">numeric_literal</replaceable>, REM <para> Currently, <literal>CHECK</literal> expressions cannot contain subqueries nor refer to variables other than columns of the - current row. The system column <literal>tableoid</literal> + current row (see <xref linkend="ddl-constraints-check-constraints"/>). + The system column <literal>tableoid</literal> may be referenced, but not any other system column. </para> |