[branch-2.1] Picks "[Fix](merge-on-write) Fix duplicate key problem after adding sequence column for merge-on-write table #39958"#40010
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dataroaring merged 2 commits intoapache:branch-2.1from Aug 28, 2024
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| Status Segment::lookup_row_key(const Slice& key, bool with_seq_col, bool with_rowid, | ||
| RowLocation* row_location) { | ||
| Status Segment::lookup_row_key(const Slice& key, const TabletSchema* latest_schema, |
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warning: function 'lookup_row_key' exceeds recommended size/complexity thresholds [readability-function-size]
Status Segment::lookup_row_key(const Slice& key, const TabletSchema* latest_schema,
^Additional context
be/src/olap/rowset/segment_v2/segment.cpp:695: 87 lines including whitespace and comments (threshold 80)
Status Segment::lookup_row_key(const Slice& key, const TabletSchema* latest_schema,
^
zhannngchen
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Aug 28, 2024
… column for merge-on-write table (#39958) ## Proposed changes Currently, `BaseTablet::lookup_row_key()` use tablet_meta's schema to decide whether a tablet has sequence column. But users can use `ALTER TABLE tbl ENABLE FEATURE "SEQUENCE_LOAD" WITH ...` to add hidden sequence column on MOW table. This is a light schema change which will not change the BE's tablet meta, thus causing wrong behavior in `BaseTablet::lookup_row_key()`. This PR use the schema of the current load, which is the latest schema, to decide whether a tablet has sequence column and correct the lookup procedure in `BaseTablet::lookup_row_key()` and `Segment::lookup_row_key()`. branch-2.1-pick: #40010 branch-2.0-pick: #40015
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dataroaring
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Sep 3, 2024
… column for merge-on-write table (#39958) ## Proposed changes Currently, `BaseTablet::lookup_row_key()` use tablet_meta's schema to decide whether a tablet has sequence column. But users can use `ALTER TABLE tbl ENABLE FEATURE "SEQUENCE_LOAD" WITH ...` to add hidden sequence column on MOW table. This is a light schema change which will not change the BE's tablet meta, thus causing wrong behavior in `BaseTablet::lookup_row_key()`. This PR use the schema of the current load, which is the latest schema, to decide whether a tablet has sequence column and correct the lookup procedure in `BaseTablet::lookup_row_key()` and `Segment::lookup_row_key()`. branch-2.1-pick: #40010 branch-2.0-pick: #40015
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Proposed changes
picks #39958