apache / apache/gluten

[CH] Csv read diff when the field delimiter is `\t`

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bug triage
Dominant language
Scala
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Description

### Backend

CH (ClickHouse)

### Bug description

Csv read diff when the field delimiter is `\t`

valina result: TR, 4.3, 4.3
gluten result: TR, NULL, NULL

### Spark version

None

### Spark configurations

_No response_

### System information

_No response_

### Relevant logs

```bash

```

Contributor guide

Open the contributing guide

Research direction

No source file, test, or entry point is named. Start by reproducing the ClickHouse CSV read with a tab field delimiter and compare the Valina and Gluten results; done means Gluten returns the same fields instead of NULL values.

Written by the indexing model from the issue text.

Assessment

Tech stack
clickhouse
Domain
backend, databases
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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