doc: Add referential actions to CREATE/ALTER TABLE synopsis

The general constraint synopsis references "referential_action", but
this was not further defined in the synopsis section.  Compared to the
level of detail that the synopsis gives to other subclauses, this
should surely be there.

extracted from a patch by Paul Martinez 

Discussion: https://www.postgresql.org/message-id/flat/CACqFVBZQyMYJV=njbSMxf+rbDHpx=W=B7AEaMKn8dWn9OZJY7w@mail.gmail.com

diff --git a/doc/src/sgml/ref/alter_table.sgml b/doc/src/sgml/ref/alter_table.sgml
index 2d639a66af0e318cc0be23b92969a4d2a948a328..bc5dcba59ced6e402e2c1c5ab6b77cbb6c8458c6 100644 (file)
--- a/doc/src/sgml/ref/alter_table.sgml
+++ b/doc/src/sgml/ref/alter_table.sgml
@@ -135,6 +135,10 @@ WITH ( MODULUS numeric_literal, REM
 exclude_element in an EXCLUDE constraint is:
 
 { column_name | ( expression ) } [ opclass ] [ ASC | DESC ] [ NULLS { FIRST | LAST } ]
+
+referential_action in a FOREIGN KEY/REFERENCES constraint is:
+
+{ NO ACTION | RESTRICT | CASCADE | SET NULL | SET DEFAULT }
 
  
 

diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml
index 61a584fa34c0318e0c9ab8070183a04976f05d44..57d51a676a739914514e93af494560685257fdc9 100644 (file)
--- a/doc/src/sgml/ref/create_table.sgml
+++ b/doc/src/sgml/ref/create_table.sgml
@@ -105,6 +105,10 @@ WITH ( MODULUS numeric_literal, REM
 exclude_element in an EXCLUDE constraint is:
 
 { column_name | ( expression ) } [ opclass ] [ ASC | DESC ] [ NULLS { FIRST | LAST } ]
+
+referential_action in a FOREIGN KEY/REFERENCES constraint is:
+
+{ NO ACTION | RESTRICT | CASCADE | SET NULL | SET DEFAULT }