*: split index region with lower upper syntax (#10409)#10764

Merged

jackysp merged 1 commit intopingcap:release-3.0from crazycs520:10409-3.0

Jun 11, 2019

+571-48

Commits on Jun 11, 2019

*: split index region with lower upper syntax (pingcap#10409 )
crazycs520
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