fix NPE at compareNumber() when filtering index query#629

Merged

Linary merged 4 commits intomasterfrom npe-compare_number-master

Aug 25, 2019

+632-58

Commits on Aug 6, 2019

fix NPE at compareNumber() when filtering index query
javeme
committed

Commits on Aug 7, 2019

add unit test for Condition
javeme
committed

Commits on Aug 8, 2019

fix serialValue() bug
javeme
committed

Commits on Aug 9, 2019

let test of SCAN return true anyway
javeme
committed