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docs: update file format options, stage schema, and COPY INTO #3437

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docs: update file format options, stage schema, and COPY INTO
youngsofun Jun 17, 2026
ab563d2
Merge branch 'main' into docs/update-file-format-stage-options
Chasen-Zhang Jun 17, 2026
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4 changes: 4 additions & 0 deletions docs/cn/guides/40-load-data/00-stage/00-what-is-stage.md
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,10 @@ LIST @~;

读取、列出、删除或检查 Stage 文件的命令和函数可以使用 `PATTERN` 按正则表达式过滤文件。对于 Stage 路径，`PATTERN` 匹配的是 `@<stage_name>[/<path>]` 之后的文件路径部分，而不是完整的 Stage URI。

:::note
Glob 模式（如 `ontime_200{6,7,8}.csv` 或 `ontime_200[6-8].csv`）仅支持基于 HTTP 的外部位置的文件路径。S3 等对象存储不支持文件路径中的 glob 展开——请改用 `PATTERN` 配合正则表达式。
:::

例如，对于 `@sales_stage/raw/`，Stage 文件 `@sales_stage/raw/year=2025/month=01/sales_20250101.parquet` 会作为 `year=2025/month=01/sales_20250101.parquet` 进行匹配：

```sql
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17 changes: 11 additions & 6 deletions docs/cn/guides/40-load-data/01-load/00-stage.md
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Expand Up @@ -87,9 +87,14 @@ CREATE STAGE my_internal_stage;
```sql
SHOW STAGES;

name |stage_type|number_of_files|creator |comment|
-----------------+----------+---------------+----------+-------+
my_internal_stage|Internal | 0|'root'@'%'| |
╭────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ name │ stage_type │ storage_type │ url │ endpoint │ has_credentials │ has_encryption_key │ storage_params │ file_format_options │ creator │ created_on │ comment │ owner │
│ String │ String │ Nullable(String) │ Nullable(String) │ Nullable(String) │ Boolean │ Boolean │ Nullable(Variant) │ Variant │ Nullable(String) │ Timestamp │ String │ Nullable(String) │
├───────────────────┼────────────┼──────────────────┼──────────────────┼──────────────────┼─────────────────┼───────────────────────┼───────────────────┼──────────────────────┼──────────────────┼─────────────┼─────────┼──────────────────┤
│ my_internal_stage │ Internal │ NULL │ NULL │ NULL │ false │ false │ NULL │ {"compression":"Zst… │ 'root'@'%' │ 2026-06-16 │ │ account_admin │
│ │ │ │ │ │ │ │ │ │ │ 22:21:19… │ │ │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯

```

### 步骤 2：上传示例文件
Expand Down Expand Up @@ -166,9 +171,9 @@ CREATE STAGE my_external_stage
```sql
SHOW STAGES;

name |stage_type|number_of_files|creator |comment|
-----------------+----------+---------------+------------------+-------+
my_external_stage|External | |'root'@'%'| |
name |stage_type|creator |comment|
-----------------+----------+------------------+-------+
my_external_stage|External |'root'@'%'| |
```

### 步骤 2：上传示例文件
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