>
> Is it possible to do this?
>
> SELECT IF(COUNT(colname) > 0, TRUE, FALSE) AS colname FROM table;
>
> What I want is to return a boolean, but when I tried SELECT
> COUNT(colname)::BOOLEAN FROM table; it says it cannot cast bigint to
> boolean.
>
How about this? Logic
al expresses are already returned as Boolean.
Select COUNT(colname) > 0 AS colname FROM table
