V2 Multi-Stage Query Engine
The new multi-stage query engine (a.k.a V2 query engine) is designed to support more complex SQL semantics such as JOIN, OVER window, MATCH_RECOGNIZE and eventually, make Pinot support closer to full ANSI SQL semantics.
Scatter-Gather Query Engine It also resolves the bottleneck effect for the broker reduce stage where only a single machine is dedicated to perform heavy lifting such as high cardinality GROUP BY result merging; ORDER BY sorting, etc.
How to use the V2 query engine
To enable the V2 engine,
please make sure to either
using the latest master commit.
Download the latest Apache Pinot docker image using the .
The overall PEP design doc and discussion can be found in the following links
