> ## Documentation Index
> Fetch the complete documentation index at: https://private-7c7dfe99-mintlify-3a82795f.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> 이전 ClickHouse 버전에서의 설정 변경 정보가 들어 있는 시스템 테이블입니다.

# system.settings_changes

<div id="description">
  ## 설명
</div>

이전 ClickHouse 버전의 설정 변경 사항에 대한 정보를 제공합니다.

<div id="columns">
  ## 컬럼
</div>

* `type` ([Enum8('Session' = 0, 'MergeTree' = 1)](/ko/reference/data-types)) — 설정 그룹(Session, MergeTree...)
* `version` ([String](/ko/reference/data-types)) — ClickHouse 서버 버전.
* `changes` ([Array(Tuple(name String, previous\_value String, new\_value String, reason String))](/ko/reference/data-types)) — ClickHouse 동작을 변경한 설정 변경 사항 목록.

<div id="example">
  ## 예시
</div>

```sql theme={null}
SELECT *
FROM system.settings_changes
WHERE version = '23.5'
FORMAT Vertical
```

```text theme={null}
Row 1:
──────
type:    Core
version: 23.5
changes: [('input_format_parquet_preserve_order','1','0','Allow Parquet reader to reorder rows for better parallelism.'),('parallelize_output_from_storages','0','1','Allow parallelism when executing queries that read from file/url/s3/etc. This may reorder rows.'),('use_with_fill_by_sorting_prefix','0','1','Columns preceding WITH FILL columns in ORDER BY clause form sorting prefix. Rows with different values in sorting prefix are filled independently'),('output_format_parquet_compliant_nested_types','0','1','Change an internal field name in output Parquet file schema.')]
```

<div id="see-also">
  ## 관련 항목
</div>

* [설정](/ko/reference/system-tables/overview#system-tables-introduction)
* [system.settings](/ko/reference/system-tables/settings)