When including document properties in the values that are captured for a job allow some of the properties to be used for summarization. The step would then add one row for each unique combination of the summary properties instead of one row for each document. This would reduce the number of rows written to the reports database. When summarizing the only other properties that would be allowed are integer properties which would be totaled in the summary row. The row would also include a count of the documents. Examples:
summarize on the document application subtype, inserter fold type (letter, 6x9, flat) and store the total pages and sheets for each summary group
summarize on the postage rate and store the total postage
summarize on the original job ID (requires doc pool), application and document SLA and store the total pages and sheets