executor: support IndexMergeReaderExecutor#12305

Merged

XuHuaiyu merged 8 commits intopingcap:masterfrom hailanwhu:IndexMergeExecute

Dec 31, 2019

+947-28

Commits on Dec 30, 2019

indexmerge executor
hailanwhu
committed
fix dev
hailanwhu
committed
fix partial comments
hailanwhu
committed
fix some comments
hailanwhu
committed
fix dev
hailanwhu
committed
fix some comments
hailanwhu
committed
add test for disabling indexmerge
hailanwhu
committed

Commits on Dec 31, 2019

Merge branch 'master' into IndexMergeExecute
sre-bot
authored