Fixes chunking example test from hanging
Fixes chunking example test from hanging

by rewriting the SQL query to use a single LEFT JOIN to pick out the max
expectation category, instead of INNER JOIN with a bunch of GROUP BYs.

maalmeida1837/deepdive,RTsWorld/deepdive,infinitespace/deepdive,sai16vicky/deepdive,vasyvas/deepdive,topojoy/deepdive,RTsWorld/deepdive,nvoron23/deepdive,vsoch/deepdive,vasyvas/deepdive,sky-xu/deepdive,nvoron23/deepdive,sai16vicky/deepdive,Atlas7/deepdive,HazyResearch/deepdive,kod3r/deepdive,zifeishan/deepdive,infinitespace/deepdive,HazyResearch/deepdive,sai16vicky/deepdive,RTsWorld/deepdive,vasyvas/deepdive,shahin/deepdive,wgapl/deepdive,maalmeida1837/deepdive,topojoy/deepdive,infinitespace/deepdive,vsoch/deepdive,HazyResearch/deepdive,Atlas7/deepdive,infinitespace/deepdive,zifeishan/deepdive,Gela/deepdive,shahin/deepdive,AlexisBRENON/deepdive,sai16vicky/deepdive,zifeishan/deepdive,closedLoop/deepdive,sky-xu/deepdive,Gela/deepdive,closedLoop/deepdive,nvoron23/deepdive,kod3r/deepdive,nvoron23/deepdive,RTsWorld/deepdive,vasyvas/deepdive,zifeishan/deepdive,infinitespace/deepdive,vasyvas/deepdive,vsoch/deepdive,maalmeida1837/deepdive,wgapl/deepdive,vsoch/deepdive,Atlas7/deepdive,topojoy/deepdive,closedLoop/deepdive,Atlas7/deepdive,HazyResearch/deepdive,vsoch/deepdive,topojoy/deepdive,maalmeida1837/deepdive,AlexisBRENON/deepdive,wgapl/deepdive,kod3r/deepdive,Gela/deepdive,wgapl/deepdive,AlexisBRENON/deepdive,kod3r/deepdive,maalmeida1837/deepdive,topojoy/deepdive,infinitespace/deepdive,Gela/deepdive,Gela/deepdive,wgapl/deepdive,closedLoop/deepdive,AlexisBRENON/deepdive,sai16vicky/deepdive,nvoron23/deepdive,AlexisBRENON/deepdive,zifeishan/deepdive,closedLoop/deepdive,Atlas7/deepdive,kod3r/deepdive,RTsWorld/deepdive