doc: Fix commas and improve spacing

diff --git a/doc/src/sgml/queries.sgml b/doc/src/sgml/queries.sgml
index ebacba856157505de1b2a1833c37902b3c0cce58..b37adaa9ee6e53e7f34d17b788449d9db9d90c1c 100644 (file)
--- a/doc/src/sgml/queries.sgml
+++ b/doc/src/sgml/queries.sgml
@@ -1253,8 +1253,8 @@ ROLLUP ( e1, e2, e3, ... )
 GROUPING SETS (
     ( e1, e2, e3, ... ),
     ...
-    ( e1, e2 )
-    ( e1 )
+    ( e1, e2 ),
+    ( e1 ),
     ( )
 )
 
@@ -1282,7 +1282,7 @@ GROUPING SETS (
     (    b, c ),
     (    b    ),
     (       c ),
-    (         ),
+    (         )
 )
 
    
@@ -1294,27 +1294,27 @@ GROUPING SETS (
     units for the purposes of generating the individual grouping sets.
     For example:
 
-CUBE ( (a,b), (c,d) )
+CUBE ( (a, b), (c, d) )
 
     is equivalent to
 
 GROUPING SETS (
-    ( a, b, c, d )
-    ( a, b       )
-    (       c, d )
+    ( a, b, c, d ),
+    ( a, b       ),
+    (       c, d ),
     (            )
 )
 
     and
 
-ROLLUP ( a, (b,c), d )
+ROLLUP ( a, (b, c), d )
 
     is equivalent to
 
 GROUPING SETS (
-    ( a, b, c, d )
-    ( a, b, c    )
-    ( a          )
+    ( a, b, c, d ),
+    ( a, b, c    ),
+    ( a          ),
     (            )
 )
 
@@ -1333,27 +1333,27 @@ GROUPING SETS (
     clause, then the final list of grouping sets is the cross product of the
     individual items.  For example:
 
-GROUP BY a, CUBE(b,c), GROUPING SETS ((d), (e))
+GROUP BY a, CUBE (b, c), GROUPING SETS ((d), (e))
 
     is equivalent to
 
 GROUP BY GROUPING SETS (
-  (a,b,c,d), (a,b,c,e),
-  (a,b,d),   (a,b,e),
-  (a,c,d),   (a,c,e),
-  (a,d),     (a,e)
+    (a, b, c, d), (a, b, c, e),
+    (a, b, d),    (a, b, e),
+    (a, c, d),    (a, c, e),
+    (a, d),       (a, e)
 )
 
    
 
   
    
-    The construct (a,b) is normally recognized in expressions as
+    The construct (a, b) is normally recognized in expressions as
     a row constructor.
     Within the GROUP BY clause, this does not apply at the top
-    levels of expressions, and (a,b) is parsed as a list of
+    levels of expressions, and (a, b) is parsed as a list of
     expressions as described above.  If for some reason you need
-    a row constructor in a grouping expression, use ROW(a,b).
+    a row constructor in a grouping expression, use ROW(a, b).