Massively Parallel NUMA-aware Hash Joins Fast Column Scans: Paged Indices for In-Memory Column Stores.- Compiled Plans for In-Memory Path-Counting Queries.- Bringing Linear Algebra Objects to Life in a Column-Oriented In-Memory Database - Dynamic Query Prioritization for In-Memory Databases.- Aggregates Caching in Columnar In-Memory Databases.- An Evaluation of Strict Timestamp Ordering Concurrency Control for Main-Memory Database Systems.- Database Scan Variants on Modern CPUs: A Performance Study.- Efficient Transaction Processing for Hyrise in Mixed Workload Environments.- The DCB-Tree: A Space-Efficient Delta Coded Cache Conscious B-Tree.- Composite Group-Keys: Space-efficient Indexing of Multiple Columns for Compressed In-Memory Column Stores.