Re: URGENT : free result (libpq++ API)

On Thu, 21 Aug 2003, Anagha Joshi wrote:

> Hi all,
> I'm using PG - 7.2.4 on Solaries.
> I'm using "libpq++" library as client implementation is coded in "C++".
>
> I'm doing the following :
> 1.    Making the connection to database by creating new object of
> "PgDatabase" i.e.
> data = new PgDatabase( " CONNECTION INFO ");
>
> 2.    Then I execure the query with:
> int return = data->Exec( " THIS IS A SQL QUERY");
>
> My question is ,
> How should I clear(free) the result of the query? Need  I close the
> connection after each query to do that?

It looks to me that PgConnection::Exec clears an existing query result
when it's called.

// PgConnection::exec  -- send a query to the backend
ExecStatusType PgConnection::Exec(const char* query)
{
    // Clear the result stucture if needed
    if (pgResult)
        PQclear(pgResult);

    // Execute the given query
    pgResult = PQexec(pgConn, query);

    // Return the status
    if (pgResult)
        return PQresultStatus(pgResult);
    else
        return PGRES_FATAL_ERROR;
}