*: add split table syntax to split table region #10553
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crazycs520
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require-LGT3
winkyao
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Jun 5, 2019
Codecov Report
@@ Coverage Diff @@
## master #10553 +/- ##
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- Coverage 79.6029% 79.5794% -0.0236%
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Files 415 415
Lines 88101 88254 +153
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+ Hits 70131 70232 +101
- Misses 12784 12828 +44
- Partials 5186 5194 +8 |
crazycs520
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/run-all-tests |
bb7133
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Co-Authored-By: bb7133 <bb7133@gmail.com>
Co-Authored-By: bb7133 <bb7133@gmail.com>
Co-Authored-By: bb7133 <bb7133@gmail.com>
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However, we should take care of the English syntax in self-made error messages. Different from code variables/comments, error messages are sent and shown to end-users. I advise making another PR to fix typos/misspellings in this PR and #10409, for example: |
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/run-all-tests |
winkyao
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Jun 6, 2019
winkyao
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Jun 6, 2019
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/run-all-tests |
zimulala
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Jun 10, 2019
executor/split.go
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| continue | ||
| } | ||
| regionIDs = append(regionIDs, regionID) | ||
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Remove this useless line.
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What problem does this PR solve?
Please merge :#10409 first.
Add new syntax for
split table region.SPLIT TABLE [table_name] BETWEEN (min_value...) AND (max_value...) REGIONS [region_num] SPLIT TABLE [table_name] BY [value_lists]Attention
minandmaxvalue count should be 1.1000in a single query.Eg1
Upper sql will split
5regions of the tabletin range0~1000. Every region range like below:Region1: -inf ~ 200
Region2: 200 ~ 400
Region3: 400 ~ 600
Region4: 600 ~ 800
Region5: 800 ~ +inf
Eg2
Upper sql will split
4regions of the tablet, Every region range like below:Region1: -inf ~ 100
Region2: 100 ~ 200
Region3: 200 ~ 300
Region4: 300 ~ +inf
What is changed and how it works?
Check List
Tests
Code changes
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