Add missing ALTER USER variants

ALTER USER ... SET did not support all the syntax variants of ALTER ROLE
...  SET.

Reported-by: Pavel Golub <[email protected]>

Author: petere

doc/src/sgml/ref/alter_role.sgml

@@ -38,7 +38,7 @@ ALTER ROLE <replaceable class="PARAMETER">name</replaceable> [ [ WITH ] <replace
 
 ALTER ROLE <replaceable class="PARAMETER">name</replaceable> RENAME TO <replaceable>new_name</replaceable>
 
-ALTER ROLE <replaceable class="PARAMETER">name</replaceable> [ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ] SET <replaceable>configuration_parameter</replaceable> { TO | = } { <replaceable>value</replaceable> | DEFAULT }
+ALTER ROLE { <replaceable class="PARAMETER">name</replaceable> | ALL } [ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ] SET <replaceable>configuration_parameter</replaceable> { TO | = } { <replaceable>value</replaceable> | DEFAULT }
 ALTER ROLE { <replaceable class="PARAMETER">name</replaceable> | ALL } [ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ] SET <replaceable>configuration_parameter</replaceable> FROM CURRENT
 ALTER ROLE { <replaceable class="PARAMETER">name</replaceable> | ALL } [ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ] RESET <replaceable>configuration_parameter</replaceable>
 ALTER ROLE { <replaceable class="PARAMETER">name</replaceable> | ALL } [ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ] RESET ALL

doc/src/sgml/ref/alter_user.sgml

@@ -38,10 +38,10 @@ ALTER USER <replaceable class="PARAMETER">name</replaceable> [ [ WITH ] <replace
 
 ALTER USER <replaceable class="PARAMETER">name</replaceable> RENAME TO <replaceable>new_name</replaceable>
 
-ALTER USER <replaceable class="PARAMETER">name</replaceable> SET <replaceable>configuration_parameter</replaceable> { TO | = } { <replaceable>value</replaceable> | DEFAULT }
-ALTER USER <replaceable class="PARAMETER">name</replaceable> SET <replaceable>configuration_parameter</replaceable> FROM CURRENT
-ALTER USER <replaceable class="PARAMETER">name</replaceable> RESET <replaceable>configuration_parameter</replaceable>
-ALTER USER <replaceable class="PARAMETER">name</replaceable> RESET ALL
+ALTER USER { <replaceable class="PARAMETER">name</replaceable> | ALL } [ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ] SET <replaceable>configuration_parameter</replaceable> { TO | = } { <replaceable>value</replaceable> | DEFAULT }
+ALTER USER { <replaceable class="PARAMETER">name</replaceable> | ALL } [ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ] SET <replaceable>configuration_parameter</replaceable> FROM CURRENT
+ALTER USER { <replaceable class="PARAMETER">name</replaceable> | ALL } [ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ] RESET <replaceable>configuration_parameter</replaceable>
+ALTER USER { <replaceable class="PARAMETER">name</replaceable> | ALL } [ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ] RESET ALL
 </synopsis>
  </refsynopsisdiv>
 

src/backend/parser/gram.y

@@ -1049,12 +1049,20 @@ AlterUserStmt:
 
 
 AlterUserSetStmt:
-			ALTER USER RoleId SetResetClause
+			ALTER USER RoleId opt_in_database SetResetClause
 				{
 					AlterRoleSetStmt *n = makeNode(AlterRoleSetStmt);
 					n->role = $3;
-					n->database = NULL;
-					n->setstmt = $4;
+					n->database = $4;
+					n->setstmt = $5;
+					$$ = (Node *)n;
+				}
+			| ALTER USER ALL opt_in_database SetResetClause
+				{
+					AlterRoleSetStmt *n = makeNode(AlterRoleSetStmt);
+					n->role = NULL;
+					n->database = $4;
+					n->setstmt = $5;
 					$$ = (Node *)n;
 				}
 			;