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Subject: [PATCH 2/3] Add a note about DROP NOT NULL and partitions
Date: Fri, 10 Feb 2017 15:03:45 +0900
On the ALTER TABLE refpage, it seems better to mention how to drop
drop the not null constraint of a partition's column. Per suggestion
from Corey Huinker.
---
doc/src/sgml/ref/alter_table.sgml | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/doc/src/sgml/ref/alter_table.sgml b/doc/src/sgml/ref/alter_table.sgml
index 077c00373d..b6be3a0dcb 100644
--- a/doc/src/sgml/ref/alter_table.sgml
+++ b/doc/src/sgml/ref/alter_table.sgml
@@ -172,9 +172,14 @@ ALTER TABLE [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceable>
</para>
<para>
- If this table is a partition, one cannot perform <literal>DROP NOT NULL</>
+ If this table is a partition, one cannot perform <literal>DROP NOT NULL</literal>
on a column if it is marked <literal>NOT NULL</literal> in the parent
- table.
+ table. To drop the <literal>NOT NULL</literal> constraint from all the
+ partitions, perform <literal>DROP NOT NULL</literal> on the parent
+ table. Even if there is no <literal>NOT NULL</> constraint on the
+ parent, such a constraint can still be added to individual partitions,
+ if desired; that is, the children can disallow nulls even if the parent
+ allows them, but not the other way around.
</para>
</listitem>
</varlistentry>
--
2.11.0
--------------19C79A137EF2D0DB3BE72F79
Content-Type: text/x-diff;
name="0003-Listify-a-note-on-the-CREATE-TABLE-page.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
filename="0003-Listify-a-note-on-the-CREATE-TABLE-page.patch"
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