Question

我已经复制了函数（来自其中一个webportal并相应地修改）以将数据从csv文件复制到表。

create or replace function public.load_csv_file
(
target_table text,
csv_path text,
col_count integer
)

returns void as $$

declare

iter integer; -- dummy integer to iterate columns with
col text; -- variable to keep the column name at each iteration
col_first text; -- first column name, e.g., top left corner on a csv file or     spreadsheet

begin
set schema 'public';

create table insert_from_csv ();

-- add just enough number of columns
for iter in 1..col_count
loop
    execute format('alter table insert_from_csv add column col_%s text;', iter);
end loop;

-- copy the data from csv file
execute format('copy insert_from_csv from %L with delimiter '','' quote ''"'' csv ', csv_path);

iter := 1;
col_first := (select col_1 from insert_from_csv limit 1);

-- update the column names based on the first row which has the column names
for col in execute format('select unnest(string_to_array(trim(temp_table::text, ''()''), '','')) from temp_table where col_1 = %L', col_first)
loop
    execute format('alter table insert_from_csv rename column col_%s to %s', iter, col);
    iter := iter + 1;
end loop;

-- delete the columns row
execute format('delete from insert_from_csv where %s = %L', col_first, col_first);

-- change the temp table name to the name given as parameter, if not blank
if length(target_table) > 0 then
    execute format('alter table insert_from_csv rename to %I', target_table);
end if;

end;

$$ language plpgsql;

和传递参数为

select load_csv_file（'Customer'，'C：\ Insert_postgres.csv'，4）

但收到错误消息

错误：必须是超级用户才能复制到文件或从文件复制提示：任何人都可以复制到stdout或stdin。 psql的\ copy命令也适用于任何人。

我的想法是，我将创建一个自动化测试，如果我想在不同的实例上进行测试，那么测试应该自动创建函数并从csv文件中复制数据。有没有超级用户复制数据的工作？

Answer 1

看起来Insert_postgres.csv在C盘中，通常没有读/写权限。将文件移动到至少给予某些组或每个人的读/写目录。希望它能解决问题

Postgres SQL - 错误：必须是超级用户才能复制到文件或从文件复制

1 个答案: