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Bug #56878 query parser doesn't grok "SELECT id FROM SAMPLE:test"
Submitted: 2006-03-06 10:20 UTC Modified: 2008-09-12 10:58 UTC
From: kfbombar at us dot ibm dot com Assigned:
Status: Closed Package: PDO (PECL)
PHP Version: 5.1.1 OS: Linux
Private report: No CVE-ID: None
View Developer Edit
 [2006-03-06 10:20 UTC] kfbombar at us dot ibm dot com 
Description:
------------
If you use a database name with the table name you get an error in the driver.  It does not matter if this name is remote, local or the current database.  I have seen this in different drivers including pdo_odbc and pdo_informix.  They all behave the same way.

Reproduce code:
---------------
<?php
        $conn = new PDO('odbc:SAMPLE', 'uname', 'pass');
        $conn->exec('CREATE TABLE test (id INT)');
        $conn->exec('INSERT INTO test(id) VALUES (1)');
        $sql  = "SELECT id FROM SAMPLE:test";
        $stmt = $conn->query($sql);
        $num  = $stmt->fetch( PDO::FETCH_BOTH );
        print "Counted $num rows after $action: $num[0].\n";
?>

Expected result:
----------------
Counted Array rows after : 1.

Actual result:
--------------
Fatal error: Call to a member function fetch() on a non-object in ~/b.php on line 9

Patches

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 [2006-03-13 22:38 UTC] jasper at album dot co dot nz 
Wouldn't standard SQL be:

  $sql  = "SELECT id FROM SAMPLE.test";

(period rather than colon)
 [2006-03-14 14:07 UTC] kfbombar at us dot ibm dot com 
We thought that the issue is the delimiter that PDO is using for param passing.  For example, "SELECT * FROM dbname:table" would be parsed into "SELECT * FROM dbname".  Let me know if I am wrong in my thoughts.  

Also, Informix uses the following syntax: dbname:owner.table

Thanks.
 [2006-03-27 17:48 UTC] kfbombar at us dot ibm dot com 
Any update on the issue on why the SELECT query is being parsed incorrectly?
 [2006-04-09 01:35 UTC] wez@php.net 
re-summarize
 [2006-04-12 13:00 UTC] iani at us dot ibm dot com 
Informix has the ability to select data from tables that are not in the current database.  The Informix syntax for a distributed query looks like :-

SELECT * FROM  DBNAME@DBSERVER:TABLENAME 

or if the database is within the same Informix instance 

SELECT * FROM DBNAME:TABLENAME

The problem is that ':' is used to denote a binding param in PDO . PDO will rewrite the above statment to look like :-

SELECT * FROM DBNAME?

which is incorrect and generates a syntax error from Informix even thou the initial syntax ( SELECT * FROM DBNAME:TABNAME ) is valid.
 [2006-06-14 12:25 UTC] iani at us dot ibm dot com 
Is any more info required ?
 [2006-09-19 14:46 UTC] iani at us dot ibm dot com 
Maybe the query re-writing within PDO should just do param replacement after the WHERE clause . 

eg:

SELECT * FROM DB:CUSTOMER WHERE CUSTNO=:MYCUST;

Currently PDO re-writes the above as 

SELECT * FROM DB:? WHERE CUSTNO=?
 [2007-01-24 17:43 UTC] iani at us dot ibm dot com 
Any update ?
 [2007-10-15 13:05 UTC] webmaster at smwebdesigns dot com 
Any update on this?
 [2008-05-07 12:13 UTC] iani at us dot ibm dot com 
This appears to have been addressed in PHP 5.2.4 . 
See also pecl bug# 11566
 [2008-09-12 10:58 UTC] johannes at schlueters dot de 
"This appears to have been addressed in PHP 5.2.4" -> closing then.
 
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