Postgres / psycopg2-插入字符串数组 [英] Postgres/psycopg2 - Inserting array of strings

问题描述

我正在将Postgres 9和Python 2.7.2与psycopg2一起使用，并试图插入带有正确转义引号的字符串值数组。示例：

I'm using Postgres 9 and Python 2.7.2 along with psycopg2 and am trying to insert an array of string values with properly escaped quotation marks. Sample:

metadata = {"Name": "Guest", "Details": "['One', 'Two', 'Three']"}

cur.execute("insert into meta values ('%s');" % metadata)

引发异常：

psycopg2.ProgrammingError: syntax error at or near "One"
LINE 1: "Details": "['One...
                      ^

我也尝试过使用Postgres的E来逃避反斜杠，但是还没有找到正确的组合。

I've also tried using Postgres' E to escape along with backslashes, but haven't found the correct combination yet. Ideas?

推荐答案

您必须让psycopg为您做参数绑定：不要尝试自己引用它们。

You have to let psycopg do parameters binding for you: don't try to quote them yourself.

Psycopg自动转换python列表字符串转换为postgres数组。请检查 http://initd.org/psycopg/docs/usage.html

Psycopg automatically converts a python list of strings into a postgres array. Check http://initd.org/psycopg/docs/usage.html

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