planner/core: support query block hint #11861
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Codecov Report
@@ Coverage Diff @@
## master #11861 +/- ##
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Coverage 81.5803% 81.5803%
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Files 443 443
Lines 96066 96066
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Hits 78371 78371
Misses 12218 12218
Partials 5477 5477 |
eurekaka
reviewed
Aug 26, 2019
winoros
reviewed
Aug 28, 2019
alivxxx
added
status/LGT2
|
/run-all-tests |
|
@lamxTyler merge failed. |
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/run-unit-test |
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What problem does this PR solve?
Support using query block in optimizer hint.
What is changed and how it works?
This PR will first tranverse the ast and assign the offset of stmt within the sql from left to right, then group hints in a top down style and let them take effects at specific query block.
Check List
Tests
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