Skip to content

Latest commit

 

History

History
87 lines (60 loc) · 4.37 KB

cockroach-userfile-get.md

File metadata and controls

87 lines (60 loc) · 4.37 KB
Raw
title summary toc
cockroach userfile get
Fetch files stored in the user-scoped file storage.
true

{% include_cached new-in.html version="v21.1" %} The cockroach userfile get command fetches the files stored in the user-scoped file storage which match the provided pattern, using a SQL connection. If no pattern is provided, all files in the specified (or default, if unspecified) user-scoped file storage will be fetched.

Required privileges

The user must have SELECT privileges on the target database.

A user can only fetch files from their own user-scoped storage, which is accessed through the userfile URI used during the upload. CockroachDB will revoke all access from every other user in the cluster except users in the admin role and users explicitly granted access.

{{site.data.alerts.callout_info}} If this is your first interaction with user-scoped file storage, you may see an error indicating that you need CREATE privileges on the database. You must first upload a file or run a BACKUP to userfile before attempting to get a file. {{site.data.alerts.end}}

Synopsis

Fetch a file:

$ cockroach userfile get <file> [flags]

View help:

$ cockroach userfile get --help

Flags

Flag | Description -----------------+----------------------------------------------------- --cert-principal-map | A comma-separated list of <cert-principal>:<db-principal> mappings. This allows mapping the principal in a cert to a DB principal such as node or root or any SQL user. This is intended for use in situations where the certificate management system places restrictions on the Subject.CommonName or SubjectAlternateName fields in the certificate (e.g., disallowing a CommonName like node or root). If multiple mappings are provided for the same <cert-principal>, the last one specified in the list takes precedence. A principal not specified in the map is passed through as-is via the identity function. A cert is allowed to authenticate a DB principal if the DB principal name is contained in the mapped CommonName or DNS-type SubjectAlternateName fields. --certs-dir | The path to the certificate directory containing the CA and client certificates and client key.

Env Variable: COCKROACH_CERTS_DIR
Default: ${HOME}/.cockroach-certs/ --echo-sql | Reveal the SQL statements sent implicitly by the command-line utility. --url | A connection URL to use instead of the other arguments.

Env Variable: COCKROACH_URL
Default: no URL --user
-u | The SQL user that will own the client session.

Env Variable: COCKROACH_USER
Default: root

Examples

Get a specific file

To get the file named test-data.csv from the default user-scoped storage location for the current user:

{% include_cached copy-clipboard.html %}

$ cockroach userfile get test-data.csv --certs-dir=certs

Get a file saved to an explicit local file name

To get a file named test-data.csv from a local directory:

{% include_cached copy-clipboard.html %}

$ cockroach userfile get test-data.csv /Users/maxroach/Desktop/test-data.csv --certs-dir=certs

Get a file from a non-default userfile URI

If you uploaded a file to a non-default userfile URI (e.g., userfile://testdb.public.uploads), use the same URI to fetch it:

{% include_cached copy-clipboard.html %}

cockroach userfile get userfile://testdb.public.uploads/test-data.csv --certs-dir=certs

Get files that match the provided pattern

To get all files that match a pattern, use *:

{% include_cached copy-clipboard.html %}

$ cockroach userfile get '*.csv' --certs-dir=certs

See also