docs: add create pipe sql reference (#3166)

Author: sundy-li

docs/cn/sql-reference/10-sql-commands/00-ddl/17-pipe/_category_.json

@@ -1 +1,4 @@
-{"label":"Pipe","position":17}
+{
+  "label": "Pipe",
+  "position": 17
+}

docs/cn/sql-reference/10-sql-commands/00-ddl/17-pipe/create-pipe.md

@@ -0,0 +1,36 @@
+---
+title: CREATE PIPE
+sidebar_position: 1
+---
+
+创建一个基于 `COPY INTO <table>` 语句的 pipe。
+
+## 语法
+
+```sql
+CREATE PIPE [ IF NOT EXISTS ] <name>
+    [ AUTO_INGEST = TRUE ]
+    [ COMMENT = '<comment>' | COMMENTS = '<comment>' ]
+AS
+COPY INTO <table> ...
+```
+
+## 参数
+
+| 参数 | 说明 |
+|-----------|-------------|
+| `IF NOT EXISTS` | 可选。如果 pipe 已存在，则成功返回但不做修改。 |
+| `AUTO_INGEST = TRUE` | 可选。启用自动导入。 |
+| `COMMENT` / `COMMENTS` | 可选的 pipe 备注。 |
+| `AS COPY INTO ...` | pipe 执行的 `COPY INTO <table>` 语句。 |
+
+## 示例
+
+```sql
+CREATE PIPE IF NOT EXISTS my_pipe
+AUTO_INGEST = TRUE
+COMMENTS = 'load staged files into target table'
+AS
+COPY INTO my_table
+FROM @my_stage;
+```

docs/cn/sql-reference/10-sql-commands/00-ddl/17-pipe/index.md

@@ -1,7 +1,13 @@
 ---
 title: Pipe
 ---
+
+Databend 中导入管道相关的 SQL 命令。
+
+## 命令参考
+
 | 命令 | 描述 |
 |---------|-------------|
+| [CREATE PIPE](create-pipe.md) | 创建基于 `COPY INTO` 的 pipe |
 | [DESCRIBE PIPE](describe-pipe.md) | 显示 pipe 属性 |
 | [DROP PIPE](drop-pipe.md) | 删除 pipe |

docs/en/sql-reference/10-sql-commands/00-ddl/17-pipe/_category_.json

@@ -1 +1,4 @@
-{"label":"Pipe","position":17}
+{
+  "label": "Pipe",
+  "position": 17
+}

docs/en/sql-reference/10-sql-commands/00-ddl/17-pipe/create-pipe.md

@@ -0,0 +1,36 @@
+---
+title: CREATE PIPE
+sidebar_position: 1
+---
+
+Creates a pipe backed by a `COPY INTO <table>` statement.
+
+## Syntax
+
+```sql
+CREATE PIPE [ IF NOT EXISTS ] <name>
+    [ AUTO_INGEST = TRUE ]
+    [ COMMENT = '<comment>' | COMMENTS = '<comment>' ]
+AS
+COPY INTO <table> ...
+```
+
+## Parameters
+
+| Parameter | Description |
+|-----------|-------------|
+| `IF NOT EXISTS` | Optional. Succeeds without changes if the pipe already exists. |
+| `AUTO_INGEST = TRUE` | Optional. Enables automatic ingestion. |
+| `COMMENT` / `COMMENTS` | Optional pipe comment. |
+| `AS COPY INTO ...` | The `COPY INTO <table>` statement executed by the pipe. |
+
+## Example
+
+```sql
+CREATE PIPE IF NOT EXISTS my_pipe
+AUTO_INGEST = TRUE
+COMMENTS = 'load staged files into target table'
+AS
+COPY INTO my_table
+FROM @my_stage;
+```

docs/en/sql-reference/10-sql-commands/00-ddl/17-pipe/index.md

@@ -1,7 +1,13 @@
 ---
 title: Pipe
 ---
+
+Pipe-related SQL commands for ingestion pipelines in Databend.
+
+## Command Reference
+
 | Command | Description |
 |---------|-------------|
+| [CREATE PIPE](create-pipe.md) | Creates a pipe backed by a `COPY INTO` statement |
 | [DESCRIBE PIPE](describe-pipe.md) | Shows pipe properties |
 | [DROP PIPE](drop-pipe.md) | Deletes a pipe |