RE: Question re large objects

The tuple limit is the reason why we created a function for writing large
text files to a database. Here's the function we use:

function inject($id, $text) {
// this function splits the article, $text, into 4k chunks and stores it.
    global $db;
    $rs = db_exec("SELECT * FROM article WHERE textid LIKE '$id-%'");    // check
to see if the text exists
    if ($rs) {
        db_exec("DELETE FROM article WHERE textid LIKE '$id-%'");        // delete old
text if it does
    }
    $row=1;
    $string="";
    while ($text != "") {
        if (strlen($text) <= 4096) {
            $string = $text;
            $text = "";
        } else {
            $x = 4096;
            while (substr($text,$x,1) != "\n" && $x > 0) { $x = $x - 1; }
            if ($x==0) {
                $x = 4096;
                while (substr($text,$x,1) != " " && $x > 0) { $x = $x - 1; }
            }
            $string = substr($text,0,$x);
            $text = substr($text,$x+1);
        }
        $string = trim($string);
        if ($string!="") {
            $blockid = $id . "-" . substr("00".$row,-2);
            $len = strlen($id);
            $kbid = str_replace("KB","",$id);
            if (strpos($kbid,":")) { $kbid = substr($kbid,0,strpos($kbid,":")); }
            if (!$kbid) { $string = addslashes($string); }
            if ($len > strlen($kbid)) {
                $sql = "INSERT INTO article (kbid,textid,article) VALUES
('$kbid','$blockid','$string')";
                db_exec($sql);
            } else {
                db_exec("INSERT INTO article (textid,article) VALUES
('$blockid','$string')");
            }
        }
        $row++;
    }
}

function retrieve($id) {
// this function retrieves and concatenates the files.
    $rs = db_exec("SELECT * from article WHERE textid LIKE '$id-%' ORDER BY
textid");    // check to see if text exists
    if ($rs) {
        $row=0;
        $string="";
        while ($row < pg_numrows($rs)) {
            $rec = pg_fetch_object($rs,$row);
            $string = $string . $rec->article;
            $row++;
        }
    } else {
        $string="";
    }
    return($string);
}


It's likely, with a little bit of tweaking, that these functions could be
used to store image files?

Justin