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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2020/07/24 11:37:14 UTC

[GitHub] [flink] lirui-apache opened a new pull request #12985: [FLINK-18682][orc][hive] Vector orc reader cannot read Hive 2.0.0 table

lirui-apache opened a new pull request #12985:
URL: https://github.com/apache/flink/pull/12985

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## What is the purpose of the change

Fix the issue that vector orc reader doesn't support Hive 2.0.0. Need to solve two problems:
1. `org.apache.hadoop.hive.ql.exec.vector.TimestampColumnVector` is not available in Hive 2.0.0. `AbstractOrcColumnVector::createFlinkVector` will throw CNFE.
2. Timestamp is stored with `LongColumnVector` in 2.0.0.

## Brief change log

- Add `OrcLegacyTimestampColumnVector` to get timestamps from `LongColumnVector`.
- `OrcLegacyTimestampColumnVector` also provides util methods to decide whether new or legacy column vector should be used.
- Enable orc read test for 2.0.0 in `TableEnvHiveConnectorITCase`.

## Verifying this change

Existing and new test cases.

## Does this pull request potentially affect one of the following parts:

- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: no
- The S3 file system connector: no

## Documentation

- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? NA

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