Re: ERROR: there is no parameter $1

Kevin Jenkins <gameprogrammer@rakkar.org> writes:
> Tom Lane wrote:
>> Hm, nothing obviously wrong there.  What PG version is this exactly?
>> Can you supply a self-contained test case?

> I made the smallest test case that I can and uploaded it here:
> http://www.rakkarsoft.com/PostgreBug.zip
> I'm sorry in advance I couldn't make it smaller but hopefully this is
> still manageable.

I tried to extract a non-Windows-dependent test case out of this,
without much luck.  Anyone else care to try?

I made the attached by plugging your PQexecParams call into
src/test/examples/testlibpq3.c, and it works fine after having
manually created the FileVersionHistory table.

            regards, tom lane

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "libpq-fe.h"

/* for ntohl/htonl */
#include <netinet/in.h>
#include <arpa/inet.h>


static void
exit_nicely(PGconn *conn)
{
    PQfinish(conn);
    exit(1);
}

int
main(int argc, char **argv)
{
    const char *conninfo;
    PGconn       *conn;
    PGresult   *res;
    char query[512];
    const char *outTemp[3];
    int outLengths[3];
    int formats[3];

    /*
     * If the user supplies a parameter on the command line, use it as the
     * conninfo string; otherwise default to setting dbname=postgres and using
     * environment variables or defaults for all other connection parameters.
     */
    if (argc > 1)
        conninfo = argv[1];
    else
        conninfo = "dbname = test";

    /* Make a connection to the database */
    conn = PQconnectdb(conninfo);

    /* Check to see that the backend connection was successfully made */
    if (PQstatus(conn) != CONNECTION_OK)
    {
        fprintf(stderr, "Connection to database failed: %s",
                PQerrorMessage(conn));
        exit_nicely(conn);
    }


    sprintf(query, "INSERT INTO FileVersionHistory(applicationID, filename, createFile, changeSetID, userName) VALUES
(%i,$1::text,FALSE,%i,'%s');", 
            42, 77, "user");
    outTemp[0]="foo";
    outLengths[0]=strlen(outTemp[0]);
    formats[0]=0;
    res = PQexecParams(conn, query,1,0,outTemp,outLengths,formats,1);

    if (PQresultStatus(res) != PGRES_COMMAND_OK)
    {
        fprintf(stderr, "INSERT failed: %s", PQerrorMessage(conn));
        PQclear(res);
        exit_nicely(conn);
    }

    PQclear(res);

    /* close the connection to the database and cleanup */
    PQfinish(conn);

    return 0;
}