Question

我在Postgres中有一个表，列名为TIME（UpperCase）。使用SQL命令从Postgres本身将csv插入此表很容易。

COPY american_district FROM 'O:\Python\PostGREsql\district.csv' WITH CSV HEADER DELIMITER AS ',' NULL AS '\N';

但是使用下面的python代码将相同的csv插入到表中会给出错误

f = open('O:\Python\PostGREsql\district.csv')
cur_DBKPI.copy_from(f, 'american_district', sep=',', null='')

ERROR：

psycopg2.DataError: invalid input syntax for type date: "TIME"
CONTEXT:  COPY american_district, line 1, column time: "TIME"

我发现最佳做法是将列保持在小写但是有任何解决方法吗？

Answer 1

通过更改我的查询的语法来使用＆＃34; copy_expert＆＃34;来添加标题。

f = open('O:\Python\PostGREsql\district.csv')
sql = "COPY american_district FROM STDIN WITH CSV HEADER DELIMITER AS ',' NULL AS '\\N'"
cur_DBKPI.copy_expert(sql=sql,file=f)

表格带有＆＃34; TIME＆＃34;无法从Python访问列

1 个答案: