Update rule examples

diff --git a/doc/src/sgml/ref/create_rule.sgml b/doc/src/sgml/ref/create_rule.sgml
index 05d2e668a9a8474d0fdf8858b23a85012c1cd55d..cd89b739fbe58430e5ef3c8aca9cc9fc382c90fd 100644 (file)
--- a/doc/src/sgml/ref/create_rule.sgml
+++ b/doc/src/sgml/ref/create_rule.sgml
@@ -1,5 +1,5 @@
 
 
@@ -171,12 +171,14 @@ CREATE
     two rules have the same semantics:
     
 ON UPDATE TO emp.salary WHERE emp.name = "Joe"
-    DO UPDATE emp ( ... ) WHERE ...
+    DO 
+   UPDATE emp ( ... ) WHERE ...
     
 
     
 ON UPDATE TO emp-1.salary WHERE emp-2.name = "Joe"
-    DO UPDATE emp-3 ( ... ) WHERE ...
+    DO 
+   UPDATE emp-3 ( ... ) WHERE ...
     
 
     Each rule can have the optional tag INSTEAD.
@@ -203,13 +205,15 @@ ON UPDATE TO emp-1.salary WHERE emp-2.name = "Joe"
      
 CREATE RULE bad_rule_combination_1 AS
     ON SELECT TO emp
-    DO INSTEAD SELECT TO toyemp;
+    DO INSTEAD 
+   SELECT TO toyemp;
      
 
      
 CREATE RULE bad_rule_combination_2 AS
     ON SELECT TO toyemp
-    DO INSTEAD SELECT TO emp;
+    DO INSTEAD 
+   SELECT TO emp;
      
      
       This attempt to retrieve from EMP will cause
@@ -257,8 +261,10 @@ SELECT * FROM emp;
    
 CREATE RULE example_1 AS
     ON UPDATE emp.salary WHERE current.name = "Joe"
-    DO UPDATE emp (salary = new.salary)
-    WHERE emp.name = "Sam";
+    DO 
+   UPDATE emp 
+   SET salary = new.salary
+   WHERE emp.name = "Sam";
    
 
    At the time Joe receives a salary adjustment, the event
@@ -275,8 +281,9 @@ CREATE RULE example_2 AS
     ON SELECT TO EMP.salary
     WHERE current.name = "Bill"
     DO INSTEAD
-    SELECT (emp.salary) from emp
-        WHERE emp.name = "Joe";
+   SELECT emp.salary
+   FROM emp
+   WHERE emp.name = "Joe";
    
   
   
@@ -285,8 +292,9 @@ CREATE RULE example_2 AS
    the current user):
      
 CREATE RULE example_3 AS
-    ON SELECT TO emp.salary
-    WHERE current.dept = "shoe" AND current_user = "Joe"
+    ON 
+   SELECT TO emp.salary
+       WHERE current.dept = "shoe" AND current_user = "Joe"
     DO INSTEAD NOTHING;
    
   
@@ -298,7 +306,8 @@ CREATE toyemp(name = char16, salary = int4);
 CREATE RULE example_4 AS
     ON SELECT TO toyemp
     DO INSTEAD
-    SELECT (emp.name, emp.salary) FROM emp
+       SELECT (emp.name, emp.salary) 
+   FROM emp
         WHERE emp.dept = "toy";
    
   
@@ -307,7 +316,8 @@ CREATE RULE example_4 AS
    
 CREATE RULE example_5 AS
     ON INERT TO emp WHERE new.salary > 5000
-    DO UPDATE NEWSET salary = 5000;
+    DO 
+   UPDATE NEWSET salary = 5000;