[GENERAL] Fwd: Regarding pg_stat_statements

[Sreerama Manoj]

Hi,
  As we know that "pg_stat_statements" will monitor the queries after
normalizing the queries(Removes the values present in query). I want to
know is there a way to store those normalized values because I want to
check the type of data(values) ,range of data that is being hit to the
database. I am using Postgres 9.4

[GENERAL] reload shared_preload_libraries

[Sreerama Manoj]

Is there a way to reload shared_preload_libraries with out restarting the
server??

I tried alter system command in postgres 9.4 but I could not change it..

[GENERAL] Create Virtual Indexes on Postgres

[Sreerama Manoj]

Hi,
 I use Postgres 9.4 database.Now,I am optimizing the queries by using
the results of "explain" and "explain analyze",Sometimes I am creating
Indexes to optimize them. But, I was not successful sometimes as even I
create Index to optimize them, the planner is not using them .

So my question was can we know whether the planner  will use the index
before actually creating a real Index..or can we create "virtual" or
"Hypothetical" Index those can only be known to the planner and not the
user or Is there any alternative to do it..If present,share with me.