Schedule - FOSDEM PGDay 2020

PostgreSQL vs. probabilistic data structures

Date: 2020-01-31
Time: 10:20–11:10
Room: PGDay at Hilton
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This talk is primarily about t-digest and q-digest, two interesting probabilistic data structures allowing efficient (distributed, parallel) estimation of rank-based statistics (e.g. percentiles). I'll briefly explain the purpose, basic principles and how you can use them to process large amounts of data in PostgreSQL.


The following slides have been made available for this session:


Tomas Vondra