executor: fix the behavior when index join meet prefix index #11081
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winoros
added
type/bug-fix
Codecov Report
@@ Coverage Diff @@
## master #11081 +/- ##
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- Coverage 81.4838% 81.132% -0.3519%
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Files 423 423
Lines 90899 90068 -831
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- Hits 74068 73074 -994
- Misses 11535 11713 +178
+ Partials 5296 5281 -15 |
executor/index_lookup_join.go
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| @@ -473,6 +475,10 @@ func (iw *innerWorker) handleTask(ctx context.Context, task *lookUpJoinTask) err | |||
| func (iw *innerWorker) constructLookupContent(task *lookUpJoinTask) ([]*indexJoinLookUpContent, error) { | |||
| lookUpContents := make([]*indexJoinLookUpContent, 0, task.outerResult.NumRows()) | |||
| keyBuf := make([]byte, 0, 64) | |||
| keyTypes := make([]*types.FieldType, 0, len(iw.keyCols)) | |||
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move line#478~481 to line #500 ?
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line500 is in a for loop.
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before for loop and after if
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The if branch is already in a for loop
util/ranger/ranger.go
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| // In case of UTF8, prefix should be cut by characters rather than bytes | ||
| // FixPrefixColDatum cuts the datum according to the prefix length. | ||
| // If it's UTF8 encoded, we will cut it by characters rather than bytes. | ||
| func FixPrefixColDatum(v *types.Datum, length int, tp *types.FieldType) bool { |
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how about s/FixPrefixColDatum/CutPrefix/?
| ranger.FixPrefixColDatum(&dLookUpKey[i], iw.colLens[i], keyTypes[i]) | ||
| } | ||
| } | ||
| // dLookUpKey is sorted and deduplicated at sortAndDedupLookUpContents. |
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Just to tell why we don't sort it here?
winoros
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/run-all-tests |
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/run-unit-test |
lzmhhh123
added
status/all tests passed
status/LGT2
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It seems that, not for sure, we failed to cherry-pick this commit to release-2.1. Please comment '/run-cherry-picker' to try to trigger the cherry-picker if we did fail to cherry-pick this commit before. @winoros PTAL. |
What problem does this PR solve?
Index join doesn't handle the index with prefix column correctly.
Fix #11061
What is changed and how it works?
Cut the column by the length.
Check List
Tests
Related changes