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Bug #36681 pgsql: Deferred constraints do not raise an exception on commit
Submitted: 2006-03-10 14:32 UTC Modified: 2006-09-19 15:46 UTC
Votes:5
Avg. Score:4.4 ± 1.2
Reproduced:5 of 5 (100.0%)
Same Version:3 (60.0%)
Same OS:2 (40.0%)
From: ce at netage dot bg Assigned:
Status: Closed Package: PDO related
PHP Version: 5.1.2 OS: Linux & Windows
Private report: No CVE-ID: None
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From: ce at netage dot bg
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 [2006-03-10 14:32 UTC] ce at netage dot bg 
Description:
------------
When using deferred constraints in postgresql, the commit statement doesn't raise exception on constraint violation

Reproduce code:
---------------
create table parent (id integer not null primary key);
create table child (parent integer not null references parent(id) deferrable);

$dbh = new PDO('pgsql:dbname=test;host=localhost');
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

$dbh->beginTransaction();
$dbh->exec('SET CONSTRAINTS ALL DEFERRED');
$dbh->exec('insert into child VALUES (1)');
$dbh->commit();


Expected result:
----------------
PHP Fatal error:  Uncaught exception 'PDOException' with message 'SQLSTATE[23503]: Foreign key violation: 7 ERROR:  insert or update on table "child" violates foreign key constraint "child_parent_fkey"


Actual result:
--------------
nothing

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 [2006-03-10 17:52 UTC] kouber@php.net 
I'm reproducing the bug on Windows XP with PHP 5.1.2.
 [2006-04-09 08:24 UTC] wez@php.net 
My guess is that this patch will fix this issue, but I haven't tried it:

Index: pgsql_driver.c
===================================================================
RCS file: /repository/php-src/ext/pdo_pgsql/pgsql_driver.c,v
retrieving revision 1.53.2.14
diff -u -p -r1.53.2.14 pgsql_driver.c
--- pgsql_driver.c      9 Apr 2006 08:17:50 -0000       1.53.2.14
+++ pgsql_driver.c      9 Apr 2006 08:23:52 -0000
@@ -470,6 +470,7 @@ static int pdo_pgsql_transaction_cmd(con

        if (PQresultStatus(res) != PGRES_COMMAND_OK) {
                ret = 0;
+               pdo_pgsql_error(dbh, PQresultStatus(res), pdo_pgsql_sqlstate(res));
        }

        PQclear(res);
 [2006-04-09 13:46 UTC] ce at netage dot bg 
I tested it against 5.1.2. It looks to me as if it works! :-)
 [2006-09-19 15:46 UTC] iliaa@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
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