Presented By
O’Reilly + Cloudera
Make Data Work
29 April–2 May 2019
London, UK
Zoltán Borók-Nagy

Zoltán Borók-Nagy
Software engineer, Cloudera

Zoltán Borók-Nagy is a software engineer at Cloudera, working on Apache Impala and is a member of the PMC of the project. Previously, Zoltán worked for Ericsson, developing software analysis tools that have since become open source.


14:0514:45 Wednesday, 1 May 2019
Anna Szonyi (Cloudera), Zoltán Borók-Nagy (Cloudera)
Average rating: ****.
(4.20, 10 ratings)
The Parquet format recently added column indexes, which improve the performance of query engines like Impala, Hive, and Spark on selective queries. Anna Szonyi and Zoltán Borók-Nagy share the technical details of the design and its implementation along with practical tips to help data architects leverage these new capabilities in their schema design and performance results for common workloads. Read more.