planner: generate IndexMergePath in physical optimization #10512
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Codecov Report
@@ Coverage Diff @@
## master #10512 +/- ##
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Coverage 81.1334% 81.1334%
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Files 419 419
Lines 90801 90801
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Hits 73670 73670
Misses 11877 11877
Partials 5254 5254 |
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@hailanwhu please resolve conflicts. |
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/rebuild |
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planner/core/stats.go
Outdated
| path.index = ds.possibleAccessPaths[i].index | ||
| noIntervalRanges, err := ds.deriveIndexPathStats(path, conditions) | ||
| if err != nil { | ||
| logutil.BgLogger().Info("can not derive statistics of a path") |
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/run-all-tests |
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What problem does this PR solve?
Fix #10518
Part of implement for Proposal
Access a table using multiple indexes. This pr implementsIndexMergeOrPathgeneration.What is changed and how it works?
Add path generation and generate
IndexMergePathCheck List
Tests
Code changes
add
planner/core/indexmerge_test.goadd
generateIndexMergeOrPaths()in planner/core/stats.gomodify
(ds *DataSource) deriveIndexPathStats()