Function PQcmdTuples

src/interfaces/libpq/fe-exec.c:3627–3674

* PQcmdTuples - * If the last command was INSERT/UPDATE/DELETE/MOVE/FETCH/COPY, return * a string containing the number of inserted/affected tuples. If not, * return "". * * XXX: this should probably return an int */

 *	XXX: this should probably return an int
 */
char *
PQcmdTuples(PGresult *res)
{
	char	   *p,
			   *c;

	if (!res)
		return "";

	if (strncmp(res->cmdStatus, "INSERT ", 7) == 0)
	{
		p = res->cmdStatus + 7;
		/* INSERT: skip oid and space */
		while (*p && *p != ' ')
			p++;
		if (*p == 0)
			goto interpret_error;	/* no space? */
		p++;
	}
	else if (strncmp(res->cmdStatus, "SELECT ", 7) == 0 ||
			 strncmp(res->cmdStatus, "DELETE ", 7) == 0 ||
			 strncmp(res->cmdStatus, "UPDATE ", 7) == 0)
		p = res->cmdStatus + 7;
	else if (strncmp(res->cmdStatus, "FETCH ", 6) == 0)
		p = res->cmdStatus + 6;
	else if (strncmp(res->cmdStatus, "MOVE ", 5) == 0 ||
			 strncmp(res->cmdStatus, "COPY ", 5) == 0)
		p = res->cmdStatus + 5;
	else
		return "";

	/* check that we have an integer (at least one digit, nothing else) */
	for (c = p; *c; c++)
	{
		if (!isdigit((unsigned char) *c))
			goto interpret_error;
	}
	if (c == p)
		goto interpret_error;

	return p;

interpret_error:
	pqInternalNotice(&res->noticeHooks,
					 "could not interpret result from server: %s",
					 res->cmdStatus);
	return "";
}

/*
 * PQgetvalue: