From: Stephan Szabo <sszabo@megazone.bigpanda.com>
To: Anagha Joshi <ajoshi@nulinkinc.com>
Cc: pgsql-hackers-owner@postgresql.org
Cc: pgsql-admin@postgresql.org
Cc: pgsql-sql@postgresql.org
Subject: Re: URGENT : free result (libpq++ API)
Date: Wed, 20 Aug 2003 23:11:10 -0700 (PDT)
Message-ID: <20030820230649.P33044-100000@megazone.bigpanda.com> (raw)
In-Reply-To: <FF851C7EEB75954F9BCFB5CA117AB1EC09289E@delta.nulinkinc.com>
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;
}
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To: pgsql-sql@postgresql.org
Cc: sszabo@megazone.bigpanda.com, ajoshi@nulinkinc.com, pgsql-hackers-owner@postgresql.org, pgsql-admin@postgresql.org
Subject: Re: URGENT : free result (libpq++ API)
In-Reply-To: <20030820230649.P33044-100000@megazone.bigpanda.com>
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