[pinot connector]Support pinot connector to read DataTableV4 bytes

[xiangfu0]

Description

Pinot DataTableV4 has a different implementation for reading Bytes:

• V2/V3 uses hex string to represent bytes,
• V4 directly uses var length bytes encoding.

This PR will check the implementation of DataTable then pick the right method to read it.

Release notes

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[ebyhr]

This behavior is weird to me. There's org.apache.pinot.common.datatable.DataTable#getNullRowIds(int colId) method. Is it possible to use the method instead?

[xiangfu0]

No, apparently there is an issue in Pinot DataTableV4 for Pinot 0.12.1 to read null bytes value(I need to verify if this is fixed in 1.0), this exception is captured by the test testNullBehavior.

getNullRowIds also returns null from the test.

If you remove the try-catch, the testNullBehavior will fail with NPE

[ebyhr]

It would be nice to file an issue in Pinot repository.

[xiangfu0]

Yes. I'm tracking this.

[xiangfu0]

This bug is fixed in pinot 1.0.0 release: https://github.com/apache/pinot/pull/10543/files#diff-2276298496d8c930553150ded2ebe21d7caa2b809e450a98618d1bd655c04891L152

[ebyhr]

Fixing pinot read bytes method for v4 dataTable

Please follow the commit message guideline. https://github.com/trinodb/trino/blob/master/.github/DEVELOPMENT.md#format-git-commit-messages

[ebyhr]

[Pinot Connector] Support bytes reading in PinotSegmentPageSource for Pinot DataTable V4 compatibility

The commit message is too long and please avoid "[Pinot Connector]" prefix.