SQL_CALC_FOUND_ROWS equivalent in PostgreSQL

Hello everyone,

I would like to use PostgreSQL with the SmartyPaginate plugin of the
Smarty template engine.

In the examples on the documentation, the following two queries are used:

SELECT SQL_CALC_FOUND_ROWS * FROM mytable LIMIT X,Y
SELECT FOUND_ROWS() as total

What the SQL_CALC_FOUND_ROWS does is that it allows the FOUND_ROWS()
function to return the total rows if the first query didn't have the
LIMIT.

Is there an equivalent function in PostgreSQL for this or perhaps a workaround?

Thanks,
Matt

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