将谷歌云功能连接到云 sql (postgreSQL)

Posted 2023-03-26

【中文标题】将谷歌云功能连接到云 sql (postgreSQL)

【英文标题】：connecting google cloud function to cloud sql (postgreSQL)

【发布时间】：2021-01-25 15:42:03

【问题描述】：

我正在尝试将 google cloud 功能与 google cloud sql (postgreSQL) 连接起来。

我找到了文档并且对文档做了完全相同的事情（我认为...）但是我得到了错误。

https://cloud.google.com/sql/docs/postgres/quickstart-connect-functions

我的云功能需求.txt

SQLAlchemy==1.3.12
pg8000==1.13.2

还有我的 main.py

import sqlalchemy

# Set the following variables depending on your specific
# connection name and root password from the earlier steps:
connection_name = "tram-2020:us-central1:tram"
db_password = "[my password]"
db_name = "guestbook"

db_user = "postgres"
driver_name = 'postgres+pg8000'
query_string = dict("unix_sock": "/cloudsql//.s.PGSQL.5432".format(connection_name))

def insert(request):
    request_json = request.get_json()
    stmt = sqlalchemy.text('INSERT INTO entries (guestName, content) values ("third guest", "Also this one");')
    db = sqlalchemy.create_engine(
      sqlalchemy.engine.url.URL(
          drivername=driver_name,
          username=db_user,
          password=db_password,
          database=db_name,
          query=query_string,
      ),
      pool_size=5,
      max_overflow=2,
      pool_timeout=30,
      pool_recycle=1800
    )
    try:
        with db.connect() as conn:
            conn.execute(stmt)
    except Exception as e:
        return 'Error: '.format(str(e))
    return 'ok'

我遇到了这样的错误

Error: (pg8000.core.ProgrammingError) 'S': 'ERROR', 'V': 'ERROR', 'C': '42703', 'M': 'column "third guest" does not exist', 'P': '50', 'F': 'parse_relation.c', 'L': '3359', 'R': 'errorMissingColumn'
[SQL: INSERT INTO entries (guestName, content) values ("third guest", "Also this one");]
(Background on this error at: http://sqlalche.me/e/f405)

为什么错误说 MissingColumn，是我使用了错误的查询吗？ 请帮助我..我该如何解决这个问题..

【参考方案1】：

我按照教程操作并遇到了同样的问题。

我不得不更改代码行：

stmt = sqlalchemy.text('INSERT INTO entries (guestName, content) values ("third guest", "Also this one");')

到

stmt = sqlalchemy.text("INSERT INTO entries (guestName, content) values ('third guest', 'Also this one');")

之后一切都按预期进行。