Hello,
As Amit Langot pointed out, the column_constraint definition is missing
whereas it is used in ALTER TABLE synopsis. It can be easily found in the
CREATE TABLE synopsis, but it's not very user friendly.
I simply copied/paste the column_constraint definition from the CREATE
TABLE synopsis to the ALTER TABLE synopsis. I also had to change the first
word "where" to "and" as it's not the first definition in that synopsis.
I choose to add it above table_constraint as column_constraint is used
before table_constraint.
The patch should apply to MASTER (or I messed up with git). I built and
tested it successfully on my laptop.
You will find enclosed my patch.
Regards,
Lætitia
diff --git a/doc/src/sgml/ref/alter_table.sgml b/doc/src/sgml/ref/alter_table.sgml
index 41acda0..c02dc38 100644
*** a/doc/src/sgml/ref/alter_table.sgml
--- b/doc/src/sgml/ref/alter_table.sgml
***************
*** 85,90 **** ALTER TABLE [ IF EXISTS ] <replaceable class="parameter">name</replaceable>
--- 85,104 ----
OWNER TO { <replaceable class="parameter">new_owner</replaceable> | CURRENT_USER | SESSION_USER }
REPLICA IDENTITY { DEFAULT | USING INDEX <replaceable class="parameter">index_name</replaceable> | FULL | NOTHING }
+ <phrase>and <replaceable class="parameter">column_constraint</replaceable> is:</phrase>
+
+ [ CONSTRAINT <replaceable class="parameter">constraint_name</replaceable> ]
+ { NOT NULL |
+ NULL |
+ CHECK ( <replaceable class="parameter">expression</replaceable> ) [ NO INHERIT ] |
+ DEFAULT <replaceable>default_expr</replaceable> |
+ GENERATED { ALWAYS | BY DEFAULT } AS IDENTITY [ ( <replaceable>sequence_options</replaceable> ) ] |
+ UNIQUE <replaceable class="parameter">index_parameters</replaceable> |
+ PRIMARY KEY <replaceable class="parameter">index_parameters</replaceable> |
+ REFERENCES <replaceable class="parameter">reftable</replaceable> [ ( <replaceable class="parameter">refcolumn</replaceable> ) ] [ MATCH FULL | MATCH PARTIAL | MATCH SIMPLE ]
+ [ ON DELETE <replaceable class="parameter">action</replaceable> ] [ ON UPDATE <replaceable class="parameter">action</replaceable> ] }
+ [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
+
<phrase>and <replaceable class="parameter">table_constraint</replaceable> is:</phrase>
[ CONSTRAINT <replaceable class="parameter">constraint_name</replaceable> ]
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