Extend the merge rollup task capabilities #14355
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## master #14355 +/- ##
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+ Coverage 61.75% 63.87% +2.12%
- Complexity 207 1580 +1373
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Files 2436 2674 +238
Lines 133233 146819 +13586
Branches 20636 22515 +1879
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+ Hits 82274 93783 +11509
- Misses 44911 46105 +1194
- Partials 6048 6931 +883
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...rc/main/java/org/apache/pinot/plugin/minion/tasks/mergerollup/DimensionValueTransformer.java
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Adds the capability to erase dimension values from a merged segment before rollup to reduce cardinality and increase the degree to which common dimension coordinates are aggregated. This can result in a space saving for some dimensions which are not important in historic data. See: apache#14310
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- apache/pinot#14355 - apache/pinot#14373 - apache/pinot#14625 Documents configuration introduced in aforementioned pull requests.
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Merge rollup task feature enhancement
Adds the capability to erase dimension values from a merged segment before rollup to reduce cardinality and increase the degree to which common dimension coordinates are aggregated. This can result in a space saving for some dimensions which are not important in historic data.
See: #14310
release-notes: