Oddly, the suggested create table runs without error and reasonably quick:
Create table test_xml as select sy_history_ID, sy.sy_Updates_XML.getclobval() as sy_xml from sy_history sy order by sy_history_ID;
Oddly, the suggested create table runs without error and reasonably quick:
Create table test_xml as select sy_history_ID, sy.sy_Updates_XML.getclobval() as sy_xml from sy_history sy order by sy_history_ID;