CREATE POLICY expression -> using_expression

The syntax for CREATE POLICY simply used "expression" for the USING
expression, while the WITH CHECK expression was "check_expression".
Given that we have two expressions, it's sensible to explcitly name both
to maintain clarity.

This patch simply changes the generic "expression" to be
"using_expression".

Pointed out by Peter Geoghegan.

diff --git a/doc/src/sgml/ref/create_policy.sgml b/doc/src/sgml/ref/create_policy.sgml
index 18ab4a78f922369711098adb24a740e56fbcca94..cf464cb51f19d71e1fdb54b9b6e2638943768dc7 100644 (file)
--- a/doc/src/sgml/ref/create_policy.sgml
+++ b/doc/src/sgml/ref/create_policy.sgml
@@ -24,7 +24,7 @@ PostgreSQL documentation
 CREATE POLICY name ON table_name
     [ FOR { ALL | SELECT | INSERT | UPDATE | DELETE } ]
     [ TO { role_name | PUBLIC } [, ...] ]
-    [ USING ( expression ) ]
+    [ USING ( using_expression ) ]
     [ WITH CHECK ( check_expression ) ]
 
  
@@ -152,7 +152,7 @@ CREATE POLICY name ON 
    
 
    
-    expression
+    using_expression
     
      
       Any SQL conditional expression (returning