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Introduction to 
SparkSQL & Catalyst 
Takuya UESHIN 
! 
ScalaMatsuri2014 2014/09/06(Sat)
Who am I? 
Takuya UESHIN 
@ueshin 
github.com/ueshin 
Nautilus Technologies, Inc. 
A Spark contributor 
2
Agenda 
What is SparkSQL? 
Catalyst in depth 
SparkSQL core in depth 
Interesting issues 
How to contribute 
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