@Override
        public void assistSessionRestarted(ContentAssistEvent event) {
            simpleMode = true;
        }
This method is incomplete in that it does not implement logic to produce
some context help relevant to SQL. It just hard codes two strings to
demonstrate the action

@see org.eclipse.jface.text.contentassist.IContentAssistProcessor#computeContextInformation(ITextViewer,
     int)
plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/syntax/SQLCompletionProcessor.java