执行psql copy命令时如何保留换行符

Question

I have following content in my csv file(with 3 columns):

141413,"\"'/x=/></script></title><x><x/","Mountain View, CA\"'/x=/></script></title><x><x/"

148443,"CLICK LINK BELOW TO ENTER^^^^^^^^^^^^^^","model\
\
xxx lipsum as it is\
\
100 sometimes unknown\
\
travel evening market\
"

When I import above mentioned csv in mysql using following command, it treats the backslash() as new line; which is the expected behavior.

LOAD DATA INFILE '1.csv' INTO TABLE users FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '\"' LINES TERMINATED BY '\n';

MYSQL Output

But when I try to import to psql using copy command, it treats \\ as a normal character.

copy users from '1.csv' WITH (FORMAT csv, DELIMITER ',', ENCODING 'utf8', NULL "\N", QUOTE E'\"', ESCAPE '\');

postgres Output

Answer 1

Try parsing these \\ before importing the CSV file, eg using perl -pe or sed and the STDIN from psql :

$ cat 1.csv | perl -pe 's/\\\n/\n/g' | psql testdb -c "COPY users FROM STDIN WITH (FORMAT csv, DELIMITER ',', ENCODING 'utf8', NULL "\N", QUOTE E'\"', ESCAPE '\');"

This is how it looks like after the import:

testdb=# select * from users;
   id   |                 company                 |                    location                     
--------+-----------------------------------------+-------------------------------------------------
 141413 | "'/x=/></script></title><x><x/          | Mountain View, CA"'/x=/></script></title><x><x/
 148443 | CLICK LINK BELOW TO ENTER^^^^^^^^^^^^^^ | model                                          +
        |                                         |                                                +
        |                                         | xxx lipsum as it is                            +
        |                                         |                                                +
        |                                         | 100 sometimes unknown                          +
        |                                         |                                                +
        |                                         | travel evening market                          +
        |                                         | 
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