Postgres SQL - 没有保留创建类型的游标

Question

我正在尝试使用 Python & psycopg2

在我的 Postgres 服务器中创建枚举

这是我的查询：

CREATE TYPE parser_type AS ENUM (
            'regex',
            'delimiter',
            'column',
            'json'
        );

当我从 IDE 执行它时它工作正常，但是当我尝试从我的代码执行此查询时它引发异常

这是执行代码

    def execute_statment(
        self,
        statment,
        statment_params=None,
    ):
        try:
            self.connect()
            cursor_id = uuid.uuid4().hex
            with self.connection.cursor(
                cursor_id,
            ) as cursor:
                cursor.execute(
                    statment,
                    statment_params,
                )
            self.connection.commit()
        except Exception as exception:
            if self.connection is not None:
                self.connection.rollback()
        finally:
            self.disconnect()

当我执行查询时出现异常

psycopg2.errors.SyntaxError: syntax error at or near "CREATE"
LINE 1: ...0bbe4cc0b7d0b9d44f74a378" CURSOR WITHOUT HOLD FOR CREATE TYPE

Answer 1

The documentation 说：

cursor(name=None, cursor_factory=None, scrollable=None, withhold=False)

Return a new cursor object using the connection.

If name is specified, the returned cursor will be a server side cursor (also known as named cursor). Otherwise it will be a regular client side cursor.

错误消息告诉您不能将服务器端游标用于运行 DDL 语句，因此不要为 cursor() 方法指定参数。

Postgres SQL - 没有保留创建类型的游标

Postgres SQL - CURSOR WITHOUT HOLD FOR CREATE TYPE

python

postgresql

psycopg2

python-3.x