Question

我有一个postgres数据库，我使用psycopg2库通过Python访问。我试图插入的表格如下所示：

                                                          Table "public.programmes"
   Column    |            Type             |                        Modifiers                        | Storage  | Stats target | Description
-------------+-----------------------------+---------------------------------------------------------+----------+--------------+-------------
 id          | bigint                      | not null default nextval('programmes_id_seq'::regclass) | plain    |              |
 title       | character varying           | not null                                                | extended |              |
 start       | timestamp without time zone | not null                                                | plain    |              |
 end         | timestamp without time zone | not null                                                | plain    |              |
 description | character varying           | not null                                                | extended |              |
 genre       | character varying           | not null                                                | extended |              |
 edited      | boolean                     | not null                                                | plain    |              |

id列已创建为bigserial到autoincrement个新条目。

由于id列会自动增量，我只会尝试插入有关其余字段的数据。我将数据创建为列表并尝试插入它：

def main():
    postConn = psycopg2.connect("dbname=TEST host=127.0.0.1 user=user")
    postCur = postConn.cursor()

    prog_data = form_programme_data()
    #prog_data = ['The Next Step', '2016-05-29T10:20:00', '2016-05-29T10:45:00', "2/34. My Boyfriend's Back: Reality-style drama following a group of dancers. A-Troupe meets their new choreographer and votes for open auditions for the nationals team. Also in HD. [S]", 'Lifestyle', False]

    postCur.execute("""INSERT INTO programmes(title, start, end, description, genre, edited) VALUES (%s, %s, %s, %s, %s, %s);""", prog_data)

我被抛出这个错误：

Traceback (most recent call last):
File "convert_db.py", line 58, in <module>
main()
File "convert_db.py", line 32, in main
postCur.execute("""INSERT INTO programmes(title, start, end, description, genre, edited) VALUES (%s, %s, %s, %s, %s, %s);""", prog_data)
psycopg2.ProgrammingError: syntax error at or near "end"
LINE 1: INSERT INTO programmes(title, start, end, description, genre...
                                             ^

如果我尝试在不指定列名的情况下插入，则它需要id的值，我无法触及。它没有抱怨提供的前两个列名，但由于某种原因不喜欢end。

感谢任何帮助。

Answer 1

显然，end是PostgreSQL中的key word。您需要引用它以使其被解释为标识符：

postCur.execute("""INSERT INTO programmes
    (title, start, "end", description, genre, edited)
    VALUES (%s, %s, %s, %s, %s, %s);""", prog_data)

Answer 2

我很确定end是Postgres中的保留关键字。尝试将列名更改为其他名称 - 这肯定会解决问题。或者，延迟解决方案可能要更改您的代码：

postCur.execute("""INSERT INTO programmes('title', 'start', 'end', 'description', 'genre', 'edited') VALUES (%s, %s, %s, %s, %s, %s);""", prog_data)

看看它是否解决了您的问题并告诉我们。

psycopg2无法插入特定列

2 个答案: