Postgres ERROR: could not open file for reading: Permission denied
PostgresqlPostgresql Problem Overview
Computer: Mac OS X, version 10.8 Database: Postgres
Trying to import csv file into postgres.
pg> copy items_ordered from '/users/darchcruise/desktop/items_ordered.csv' with CSV;
ERROR: could not open file "/users/darchcruise/desktop/items_ordered.csv" for reading: Permission denied
Then I tried
$> chown postgres /users/darchcruise/desktop/items_ordered.csv
chown: /users/darchcruise/desktop/items_ordered.csv: Operation not permitted
Lastly, I tried
$> ls -l
-rw-r--r-- 1 darchcruise staff 1016 Oct 18 21:04 items_ordered.csv
Any help is much appreciated!
Postgresql Solutions
Solution 1 - Postgresql
Assuming the psql
command-line tool, you may use \copy
instead of copy
.
\copy
opens the file and feeds the contents to the server, whereas copy
tells the server the open the file itself and read it, which may be problematic permission-wise, or even impossible if client and server run on different machines with no file sharing in-between.
Under the hood, \copy
is implemented as COPY FROM stdin
and accepts the same options than the server-side COPY
.
Solution 2 - Postgresql
Copy the CSV file to /tmp
For me this solved the issue.
Solution 3 - Postgresql
chmod a+rX /users/darchcruise/ /users/darchcruise/desktop /users/darchcruise/desktop/items_ordered.csv
This will change access rights for your folder. Note that everyone will be able to read your file. You can't use chown being a user without administrative rights. Also consider learning umask to ease creation of shared files.
Solution 4 - Postgresql
Copy your CSV file into the /tmp folder
Files named in a COPY command are read or written directly by the server, not by the client application. Therefore, they must reside on or be accessible to the database server machine, not the client. They must be accessible to and readable or writable by the PostgreSQL user (the user ID the server runs as), not the client. COPY naming a file is only allowed to database superusers, since it allows reading or writing any file that the server has privileges to access.
Solution 5 - Postgresql
I had the issue when I was trying to export data from a remote server into the local disk. I hadn't realised that SQL copy
actually is executed on the server and that it tries to write to a server folder. Instead the correct thing to do was to use \copy
which is the psql command and it writes to the local file system as I expected. http://www.postgresql.org/message-id/CAFjNrYsE4Za_KWzmfgN1_-MG7GTw_vpMRxPk=OEjAiLqLskxdA@mail.gmail.com
Perhaps that might be useful to someone else too.
Solution 6 - Postgresql
Another way to do this, if you have pgAdmin and are comfortable using the GUI is to go the table in the schema and right click on the table you wish to import the file to and select "Import" browse your computer for the file, select the type your file is, the columns you want the data to be imputed into, and then select import.
That was done using pgAdmin III and the 9.4 version of PostgreSQL
Solution 7 - Postgresql
I resolved the same issue with a recursive chown on the parent folder:
sudo chown -R postgres:postgres /home/my_user/export_folder
(my export being in /home/my_user/export_folder/export_1.csv
)
Solution 8 - Postgresql
COPY your table (Name, Latitude, Longitude) FROM 'C:\Temp\your file.csv' DELIMITERS ',' CSV HEADER;
Use c:\Temp\"Your File"\
.
Solution 9 - Postgresql
For me it worked to simply to add sudo (or run as root) for the chown command:
sudo chown postgres /users/darchcruise/desktop/items_ordered.csv
Solution 10 - Postgresql
just in case you're facing this problem under windows 10 , add the group of users "youcomputer\Users" on the security Tab and grant it full control , that solved my issue
Solution 11 - Postgresql
for macbook first i opened terminal then type
open /tmp
or in finder directory you directly enter command+shift+g then type /tmp in go to the folder.
it opens temp folder in finder. then i paste copied csv file into this folder.then again i go to postgres terminal and typed below command and then it is copied my csv data into db table
\copy recharge_operator FROM '/private/tmp/operator.csv' DELIMITER ',' CSV;
Solution 12 - Postgresql
You must grant the pg_read_server_files
permission to the user if you are not using postgres
superuser
.
Example:
GRANT pg_read_server_files TO my_user WITH ADMIN OPTION;
Solution 13 - Postgresql
I had the same error message but was using psycopg2
to communicate with PostgreSQL. I fixed the permission issues by using the functions copy_from
and copy_expert
that will open the file on the client side as the user running the python script and feed the data to the database over STDIN
.
Refer to this link for further information.
Solution 14 - Postgresql
This answer is only for Linux Beginners.
Assuming initially the DB user didn't have file/folder(directory) permission on the client side.
> Let's constrain ourselves to the following:
User: postgres
Purpose: You wanted to (write to / read from) a specific folder
Tool: psql
Connected to a specific database: YES
FILE_PATH: /home/user/training/sql/csv_example.csv
Query: \copy (SELECT * FROM table_name TO FILE_PATH, DELIMITER ',' CSV HEADER;
Actual Results: After running the query you got an error : Permission Denied
Expected Results: COPY COUNT_OF_ROWS_COPIED
Here are the steps I'd follow to try and resolve it.
- Confirm the FILE_PATH permissions on your File system.
Inside a terminal to view the permissions for a file/folder you need to long list them by entering the command ls -l
.
The output has a section that shows sth like this -> drwxrwxr-x
Which is interpreted in the following way:
TYPE | OWNER RIGHTS | GROUP RIGHTS | USER RIGHTS
rwx
(r: Read, W: Write, X: Execute)
TYPE (1 Char) = d: directory, -: file
OWNER RIGHTS (3 Chars after TYPE)
GROUP RIGHTS (3 Chars after OWNER)
USER RIGHTS (3 Chars after GROUP)
- If permissions are not enough (Ensure that a user can at least enter all folders in the path you wanted path) -
x
.
This means for FILE_PATH, All the directories (home , user, training, sql) should have at least an x
in the USER RIGHTS.
- Change permissions for all parent folders that you need to enter to have a
x
. You can usechmod rights_you_want parent_folder
Assuming /training/
didn't have an execute permission.
I'd go the user folder and enter chmod a+x training
- Change the destination folder/directory to have a
w
if you want to write to it. or at least ar
if you want to read from it
Assuming /sql
didn't have a write permission.
I would now chmod a+w sql
- Restart the postgresql server
sudo systemctl restart postgresql
- Try again.
This would most probably help you now get a successful expected result.
Solution 15 - Postgresql
I just copied the source csv file to an external USB drive, and it worked fine.
Solution 16 - Postgresql
May be You are using pgadmin by connecting remote host then U are trying to update there from your system but it searches for that file in remote system's file system... its the error wat I faced May be its also for u check it