How to get the total number of tables in postgresql?

Question

Is there any way by which I can get the total number of tables in a Postgresql database? The postgresql version I'm using is PostgreSQL 8.4.14.

Answer 1

select count(*) from information_schema.tables; 

Or if you want to find the number of tables only for a specific schema:

select count(*) from information_schema.tables where table_schema = 'public'; 

Answer 2

Just try to search in pg_stat... tables or information_schema you can find there very useful informations about your database.
Example:

select * from  pg_stat_user_tables ; select count(*) from  pg_stat_user_tables ;  select * from  pg_stat_all_tables ;