这里的大多数其他解决方案都要求您提前/手动创建表。这在某些情况下可能不实用(例如，如果目标表中有很多列)。因此，下面的方法可能会派上用场。

提供你的CSV文件的路径和列数，你可以使用下面的函数来加载你的表到一个临时表，它将被命名为target_table:

假设第一行具有列名。

create or replace function data.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
    create table temp_table ();

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

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

    iter := 1;
    col_first := (select col_1 from temp_table 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 temp_table rename column col_%s to %s', iter, col);
        iter := iter + 1;
    end loop;

    -- delete the columns row
    execute format('delete from temp_table 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 temp_table rename to %I', target_table);
    end if;

end;

$$ language plpgsql;

DBeaver社区版(DBeaver .io)使得连接到数据库，然后导入CSV文件上传到PostgreSQL数据库变得很简单。它还可以方便地发出查询、检索数据以及将结果集下载为CSV、JSON、SQL或其他常见数据格式。

它是一个面向SQL程序员、dba和分析师的自由/开源多平台数据库工具，支持所有流行的数据库:MySQL、PostgreSQL、SQLite、Oracle、DB2、SQL Server、Sybase、MS Access、Teradata、Firebird、Hive、Presto等。对于Postgres的TOAD, SQL Server的TOAD，或者Oracle的TOAD，它是一个可行的自由/开源软件竞争对手。

I have no affiliation with DBeaver. I love the price (FREE!) and full functionality, but I wish they would open up this DBeaver/Eclipse application more and make it easy to add analytics widgets to DBeaver / Eclipse, rather than requiring users to pay for the $199 annual subscription just to create graphs and charts directly within the application. My Java coding skills are rusty and I don't feel like taking weeks to relearn how to build Eclipse widgets, (only to find that DBeaver has probably disabled the ability to add third-party widgets to the DBeaver Community Edition.)

这里的大多数其他解决方案都要求您提前/手动创建表。这在某些情况下可能不实用(例如，如果目标表中有很多列)。因此，下面的方法可能会派上用场。

提供你的CSV文件的路径和列数，你可以使用下面的函数来加载你的表到一个临时表，它将被命名为target_table:

假设第一行具有列名。

create or replace function data.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
    create table temp_table ();

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

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

    iter := 1;
    col_first := (select col_1 from temp_table 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 temp_table rename column col_%s to %s', iter, col);
        iter := iter + 1;
    end loop;

    -- delete the columns row
    execute format('delete from temp_table 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 temp_table rename to %I', target_table);
    end if;

end;

$$ language plpgsql;

您还可以使用pgfutter，或者更好的pgcsv。

这些工具根据CSV标题为您创建表列。

pgfutter有很多bug，我推荐pgcsv。

下面是如何使用pgcsv:

sudo pip install pgcsv
pgcsv --db 'postgresql://localhost/postgres?user=postgres&password=...' my_table my_file.csv

我创建了一个小工具，可以超级简单地将csv文件导入PostgreSQL。它只是一个命令，它将创建和填充表，但不幸的是，目前自动创建的所有字段都使用TEXT类型:

csv2pg users.csv -d ";" -H 192.168.99.100 -U postgres -B mydatabase

该工具可以在https://github.com/eduardonunesp/csv2pg上找到

您可以创建一个Bash文件import.sh(您的CSV格式是一个制表符分隔符):

#!/usr/bin/env bash

USER="test"
DB="postgres"
TBALE_NAME="user"
CSV_DIR="$(pwd)/csv"
FILE_NAME="user.txt"

echo $(psql -d $DB -U $USER  -c "\copy $TBALE_NAME from '$CSV_DIR/$FILE_NAME' DELIMITER E'\t' csv" 2>&1 |tee /dev/tty)

然后运行这个脚本。