Fix logic errors and improve code consistency

Code improvements:
- Fix alter_user script to use 'raise info' instead of 'raise debug'
  for consistency with create_user script
- Fix inverted logic in refresh_all.sql notice message:
  - Change TRUE to FALSE for correct instruction
  - Replace "w/o" with "without" for better readability
- Remove duplicate 'sum(calls) as calls' in s1_pg_stat_statements_top_total.sql
  that was defined both globally and in the \else block

These changes fix functional issues and improve code clarity.

Author: claude

matviews/refresh_all.sql

@@ -1,7 +1,7 @@
 -- Use this to do the very 1st REFRESH for your matviews
 -- In case when there are complex relations between matviews,
 -- it might perform multiple iterations and eventually refreshes
--- all matviews (either all w/o data or absolutely all -- it's up to you).
+-- all matviews (either all without data or absolutely all -- it's up to you).
 
 -- set this to TRUE here if you need ALL matviews to be refreshed, not only those that already have been refreshed
 set postgres_dba.refresh_matviews_with_data = FALSE;
@@ -22,7 +22,7 @@ begin
     set postgres_dba.refresh_matviews_with_data = true;
   end if;
   if current_setting('postgres_dba.refresh_matviews_with_data')::boolean then
-    raise notice 'Refreshing ALL matviews (run ''set postgres_dba.refresh_matviews_with_data_forced = TRUE;'' to refresh only matviews w/o data).';
+    raise notice 'Refreshing ALL matviews (run ''set postgres_dba.refresh_matviews_with_data_forced = FALSE;'' to refresh only matviews without data).';
     for matview in
       select format('"%s"."%s"', schemaname::text, matviewname::text)
       from pg_matviews
@@ -32,7 +32,7 @@ begin
       execute sql;
     end loop;
   else
-      raise notice 'Refreshing only matviews w/o data (run ''set postgres_dba.refresh_matviews_with_data_forced = TRUE;'' to refresh all matviews).';
+      raise notice 'Refreshing only matviews without data (run ''set postgres_dba.refresh_matviews_with_data_forced = TRUE;'' to refresh all matviews).';
   end if;
 
   iter := 1;

roles/alter_user_with_random_password.psql

@@ -56,7 +56,7 @@ begin
     (case when lower(current_setting('postgres_dba.login')::text) not in ('0', '', 'no', 'false', 'n', 'f') then ' login' else '' end));
   raise debug 'SQL: %', sql;
   execute sql;
-  raise debug 'User % altered, password: %', current_setting('postgres_dba.username')::text, pwd;
+  raise info 'User % altered, password: %', current_setting('postgres_dba.username')::text, pwd;
 end;
 $$ language plpgsql;
 

sql/s1_pg_stat_statements_top_total.sql

@@ -30,7 +30,6 @@ select
     round(max(max_plan_time)::numeric, 2)
   ) as min_max_plan_t,
 \else
-  sum(calls) as calls,
   round(sum(total_time)::numeric, 2) as total_time,
   round((sum(mean_time * calls) / sum(calls))::numeric, 2) as mean_time,
   format(