keep analysis_job.input_id as varchar(255) to allow UNIQUE(analysis_id,input_id)
but in adaptor added logic so that if input_id in AnalysisJob object exceeds
the 255 char limit to store/fetch from the analysis_data table.  The input_id
in the analysis_job table becomes '_ext_input_analysis_data_id ##' which is a unique
internal variable to trigger the fetch routine to know to get the 'real' input_id
from the analysis_data table.
NO MORE 255 char limit on input_id and completely transparent to API user.