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From "Eugene Koifman (Jira)" <>
Subject [jira] [Assigned] (HIVE-17296) Acid tests with multiple splits
Date Wed, 28 Jul 2021 14:14:04 GMT


Eugene Koifman reassigned HIVE-17296:

    Assignee:     (was: Eugene Koifman)

> Acid tests with multiple splits
> -------------------------------
>                 Key: HIVE-17296
>                 URL:
>             Project: Hive
>          Issue Type: Test
>          Components: Transactions
>    Affects Versions: 3.0.0
>            Reporter: Eugene Koifman
>            Priority: Major
> data files in an Acid table are ORC files which may have multiple stripes
> for such files in base/ or delta/ (and original files with non acid to acid conversion)
are split by OrcInputFormat into multiple (stripe sized) chunks.
> There is additional logic in in OrcRawRecordMerger (discoverKeyBounds/discoverOriginalKeyBounds)
that is not tested by any E2E tests since none of the have enough data to generate multiple
stripes in a single file.
> testRecordReaderOldBaseAndDelta/testRecordReaderNewBaseAndDelta/testOriginalReaderPair
> in TestOrcRawRecordMerger has some logic to test this but it really needs e2e tests.
> With ORC-228 it will be possible to write such tests.

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