This document discusses partitioning in OBIEE 11g to improve query performance. It describes three types of partitioning: fact-based partitioning which stores data in separate tables by dimension like year; level-based partitioning which stores aggregated data at different levels in separate tables; and value-based partitioning which splits data into tables by column values. It provides steps for creating requests against partitioned data, including importing metadata, creating physical joins, mapping sources, and checking the results and query logs.