I've posted one comment about this in ADOdb forums:
http://phplens.com/lens/lensforum/msgs.php?id=15930
* drivers-adodb-postgres7.inc.php - removed (commented) one buggy ServerInfo() call that
was preventing PG version detection to work. http://tracker.moodle.org/browse/MDL-6647
Once solved by adodb guys, we'll undo this (affects to version v4.92a of ADOdb)
+ * drivers/adodb-odbc_mssql.inc.php - added one missing function (MetaIndexes) that is
+ required in order to support the driver properly. Work in progress for the annoying
+ http://tracker.moodle.org/browse/MDL-6877.
+ Once implemented by adodb guys, we'll return to their official distro.
+
skodak
30 August 2006