postgresql - postgresql中的复制命令出错？

Question

我的命令是

\copy meta.amz_payment1("Date", settlement_id, type, order_id, sku, 

description, quantity, marketplace, fulfillment, order_city, order_state, 

order_postal, product_sales, shipping_credits, promotional_rebates, 

sales_tax_collected, selling_fees, fba_fees, other_transaction_fees,other, total) 

from '/Users/manish/Downloads/amz.csv' delimiter ',' csv header

但它给出了以下错误：

错误：数字类型的无效输入语法：“-8,791.41” 上下文：复制 amz_payment1，第 23 行，列总计：“-8,791.41”

Answer 1

“总计”列的类型为numeric，但 CSV 文件具有该位置的格式化字符串。您应该在表中添加一varchar列meta.amz_payment1并将信息复制到该列中。复制数据后，您可以使用UPDATE语句填充“总计”列：

ALTER TABLE meta.amz_payment1 ADD COLUMN total_fmt varchar;

\copy meta.amz_payment1("Date", ... total_fmt) from ...;

UPDATE meta.amz_payment1 SET total = total_fmt::numeric;

然后

ALTER TABLE meta.amz_payment1 DROP COLUMN total_fmt;