如何用脚本批量导出doris表结构

在Doris中，Doris Table Metadata API可以用于获取表的结构信息。你可以编写一个简单的Python或其他脚本来批量导出表结构。以下是一个基本的Python示例，它使用`requests`库来与Doris服务通信：

import requests
from json import.dumps

# Doris集群配置
cluster_url = "http://your_doris_cluster/api"
username = "your_username"
password = "your_password"

def get_table_schema(table_name):
    url = f"{cluster_url}/metadata/v1/schemas/{table_name}"
    auth = (username, password)
    response = requests.get(url, auth=auth)
    
    if response.status_code == 200:
        schema = response.json()
        return schema
    else:
        print(f"Error fetching schema for {table_name}: {response.text}")
        return None

# 要导出的表名列表
tables_to_export = ["table1", "table2", "table3"]

for table in tables_to_export:
    schema = get_table_schema(table)
    if schema:
        # 输出或保存表结构到文件
        with open(f"{table}.json", 'w') as f:
            f.write(dumps(schema, indent=4))
        print(f"Schema for {table} exported to {table}.json")
    else:
        print(f"Skipped {table}, no schema available.")