Details
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Bug
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Status: Open
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Major
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Resolution: Unresolved
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1.5.5
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None
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None
Description
StripeStatistics::getColumnStatistics() will deserialize all column statistics, even if the ORC predicate push-down and the eventual SARG applies to a subset.
This is affecting DATE push-down into a very wide table, where the deserialization of the statistics is the host spot during split-generation, due to the new Text() allocation within String statistics implementation.