Oracle is getting this error running unit tests. The datagenerator for grade items is new and is probably the cause.

1) core_grade_scale_testcase::test_grade_scale
dml_read_exception: Error reading from database (ORA-00932: inconsistent datatypes: expected - got CLOB
SELECT * FROM xngrade_items WHERE courseid = :o_param1 AND categoryid = :o_param2 AND itemname = :o_param3 AND itemtype = :o_param4 AND itemnumber = :o_param5 AND needsupdate = :o_param6 AND gradetype = :o_param7 AND scaleid = :o_param8 AND iteminfo = :o_param9 AND timecreated = :o_paran0 AND timemodified = :o_paran1
[array (
'o_param1' => '450000',
'o_param2' => 391001,
'o_param3' => 'manual grade_item scale_1',
'o_param4' => 'manual',
'o_param5' => 0,
'o_param6' => 0,
'o_param7' => 2,
'o_param8' => '262006',
'o_param9' => 'Manual grade item used for unit testing',
'o_paran0' => 1412167943,
'o_paran1' => 1412167943,
)])

/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/dml/moodle_database.php:443
/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/dml/oci_native_moodle_database.php:271
/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/dml/oci_native_moodle_database.php:1092
/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/dml/moodle_database.php:1199
/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/grade/grade_object.php:207
/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/grade/grade_object.php:160
/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/grade/grade_item.php:326
/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/grade/grade_object.php:90
/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/grade/tests/grade_scale_test.php:164
/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/grade/tests/grade_scale_test.php:39
/home/damyonw/Documents/Moodle/instances/im_oracle/moodle/lib/phpunit/classes/advanced_testcase.php:80