#46575 [NEW]: NULL comparison when using "not in" not consistent with Windows SQL

From: ben at thelocust dot org Operating system: Linux and Windows PHP version: 5.2.6 PHP Bug Type: MSSQL related Bug description: NULL comparison when using "not in" not consistent with Windows SQL Description: ------------ When querying a MSSQL database table, and using the "not in" syntax, PHP's mssql_query will also return rows with NULL in the field specified. Reproduce code: --------------- SQL Server 2000 or 2005 Table "test" test_id (int) test_name (vchar) test_number (int) 1 Foo 1 2 Bar 2 3 <null> 3 4 Baz <null> $sql = "select test_id from test where test_number not in (1,2)"; $res = mssql_query($sql); while ($row = mssql_fetch_array($res)) { ?> <?=$row['test_id'];?><br/> <? } Expected result: ---------------- In PHP, either using FreeTDS on Linux or the MSSQL extension on Windows, the above returns: 3 4 In ASP/VBScript or using Query Analyzer on Windows the following is returned: 3 Windows' MSSQL driver apparently will not compare the "not in" values to a NULL field. PHP, apparently, will. This creates and inconsistency between the two platforms. -- Edit bug report at http://bugs.php.net/?id=46575&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=46575&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=46575&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=46575&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=46575&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=46575&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=46575&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=46575&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=46575&r=needscript Try newer version: http://bugs.php.net/fix.php?id=46575&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=46575&r=support Expected behavior: http://bugs.php.net/fix.php?id=46575&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=46575&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=46575&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=46575&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=46575&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=46575&r=dst IIS Stability: http://bugs.php.net/fix.php?id=46575&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=46575&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=46575&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=46575&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=46575&r=mysqlcfg