Re: ERROR: there is no parameter $1

[Tom Lane <tgl@xxxxxxxxxxxxx>]

Kevin Jenkins <gameprogrammer@xxxxxxxxxx> 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;
}