fix remove secondary index of cassandra backend exceeding 65535 limit

[zhoney]

fixed: #384

Change-Id: I3b0db265b621c149404a97ab688af8bd2e4ca4bd

[codecov]

Codecov Report

Merging #386 into master will increase coverage by <.01%.
The diff coverage is 75%.

@@             Coverage Diff              @@
##             master     #386      +/-   ##
============================================
+ Coverage     67.64%   67.64%   +<.01%     
  Complexity     3172     3172              
============================================
  Files           203      203              
  Lines         16078    16082       +4     
  Branches       2343     2345       +2     
============================================
+ Hits          10876    10879       +3     
+ Misses         3993     3992       -1     
- Partials       1209     1211       +2

Impacted Files	Coverage Δ	Complexity Δ
...m/baidu/hugegraph/backend/tx/GraphTransaction.java	83.04% <100%> (ø)	208 <2> (+1)	⬆️
...idu/hugegraph/job/schema/RebuildIndexCallable.java	84.28% <100%> (ø)	18 <0> (ø)	⬇️
...graph/backend/store/cassandra/CassandraTables.java	87.9% <25%> (-0.84%)	1 <0> (ø)
...va/com/baidu/hugegraph/backend/cache/RamCache.java	67.06% <0%> (-0.41%)	41% <0%> (-1%)
...du/hugegraph/backend/tx/GraphIndexTransaction.java	78.36% <0%> (+0.49%)	134% <0%> (ø)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 502452d...c3e34b7. Read the comment docs.