Analysis of Compression Algorithms in Columnar Databases

Student: Shirin Nikita

Educational Programme: Data Science (Master)

Year of Graduation: 2021

This work includes the implementation of the modification of the algorithm PFOR (Patched Frame-Of-Reference) for integer compression in the C ++ programming language, its optimization and analysis of its work. The work demonstrates that the algorithm achieves high compression ratios and very fast decompression speed, speeding up the execution of queries on integers in the ClickHouse database.

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