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Posted to issues@orc.apache.org by "Smith-Cruise (via GitHub)" <gi...@apache.org> on 2024/02/28 08:14:58 UTC
[I] What's the meaning of EvaluatedRowGroupCount in ReaderMetrics [orc]
Smith-Cruise opened a new issue, #1829:
URL: https://github.com/apache/orc/issues/1829
in `SargsApplier::pickRowGroups()`, EvaluatedRowGroupCount looks like is `row group that has been evaluated`
but in `SargsApplier::evaluateFileStatistics()` and `SargsApplier::evaluateStripeStatistics()`, EvaluatedRowGroupCount looks like is `row group has been filtered by Sargs`.
I'm little confused, anyone knows about it?
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Re: [I] What's the meaning of EvaluatedRowGroupCount in ReaderMetrics [orc]
Posted by "wgtmac (via GitHub)" <gi...@apache.org>.
wgtmac closed issue #1829: What's the meaning of EvaluatedRowGroupCount in ReaderMetrics
URL: https://github.com/apache/orc/issues/1829
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Re: [I] What's the meaning of EvaluatedRowGroupCount in ReaderMetrics [orc]
Posted by "Smith-Cruise (via GitHub)" <gi...@apache.org>.
Smith-Cruise commented on issue #1829:
URL: https://github.com/apache/orc/issues/1829#issuecomment-1973369113
> It seems that there are some bugs in the code that `SargsApplier::evaluateFileStatistics()` and `SargsApplier::evaluateStripeStatistics()` didn't count up `row groups that has been evaluated` correctly.
I don't know if it's a bug or if it's intentional
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Re: [I] What's the meaning of EvaluatedRowGroupCount in ReaderMetrics [orc]
Posted by "wgtmac (via GitHub)" <gi...@apache.org>.
wgtmac commented on issue #1829:
URL: https://github.com/apache/orc/issues/1829#issuecomment-1968475459
Could you help answer this? @coderex2522
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Re: [I] What's the meaning of EvaluatedRowGroupCount in ReaderMetrics [orc]
Posted by "wgtmac (via GitHub)" <gi...@apache.org>.
wgtmac commented on issue #1829:
URL: https://github.com/apache/orc/issues/1829#issuecomment-1975155605
It should be a bug. Do you want to fix it? @ffacs @Smith-Cruise
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Re: [I] What's the meaning of EvaluatedRowGroupCount in ReaderMetrics [orc]
Posted by "ffacs (via GitHub)" <gi...@apache.org>.
ffacs commented on issue #1829:
URL: https://github.com/apache/orc/issues/1829#issuecomment-1973344133
It seems that there are some bugs in the code that `SargsApplier::evaluateFileStatistics()` and `SargsApplier::evaluateStripeStatistics()` didn't count up `row groups that has been evaluated` correctly.
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Re: [I] What's the meaning of EvaluatedRowGroupCount in ReaderMetrics [orc]
Posted by "Smith-Cruise (via GitHub)" <gi...@apache.org>.
Smith-Cruise commented on issue #1829:
URL: https://github.com/apache/orc/issues/1829#issuecomment-1975979294
> It should be a bug. Do you want to fix it? @ffacs @Smith-Cruise
It's easy to fix, so we need to count row groups even they can be filtered.
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