ddl: refine pre-split region logic (#11794) #11797
Merged
+21
−13
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cherry-pick #11794 to release-2.1
What problem does this PR solve?
The original logic of
pre_split_region
will split 2^(pre_split_region -1
) regions. It was strange for the user to understand and remember it.This PR will simply split 2^(
pre_split_region
) regions whencreate table
withpre_split_region
.What is changed and how it works?
Check List
Tests
Code changes
Side effects
Related changes
Release Note
pre_split_regions
logic for easy to understand and remember.