Respect SQL-treatment flags related to data storage and migration

[cdwdirect]

• "SQL : Do Not Store"
• "SQL : In Situ Only"
• "SQL : Aggregate" (default, currently supported)
• NOTE: Support filtered aggregation of current values for purely in-memory "SQL : Do Not Store" cases
  -- FOR pub->guid==Z
  -- FOR pub->comm_rank > G and pub->comm_rank < H
  -- FOR pub->data[x]->name LIKE "Y*"
  -- ...etc.