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https://issues.apache.org/jira/browse/CASSANDRA-10135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14703788#comment-14703788
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Bernhard K. Weisshuhn commented on CASSANDRA-10135:
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sorry, I had to edit the description because of a copy and paste failure.
> Quoting changed for username in GRANT statement
> -----------------------------------------------
>
> Key: CASSANDRA-10135
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10135
> Project: Cassandra
> Issue Type: Bug
> Components: API
> Environment: cassandra 2.2.0
> Reporter: Bernhard K. Weisshuhn
> Priority: Minor
>
> We may have uncovered an undocumented api change between cassandra 2.1.x and
> 2.2.0.
> When granting permissions to a username containing special characters, 2.1.x
> needed single quotes around the username and refused doubles.
> 2.2.0 needs doubles and refuses singles.
> Working example for 2.1.x:
> {code:sql}
> GRANT SELECT ON ALL KEYSPACES TO
> 'vault-readonly-root-79840dbb-917e-ed90-38e0-578226e6c1c6-1440017797';
> {code}
> Enclosing the username in double quotes instead of singles fails with the
> following error message:
> {quote}
> cassandra@cqlsh> GRANT SELECT ON ALL KEYSPACES TO
> "vault-readonly-root-79840dbb-917e-ed90-38e0-578226e6c1c6-1440017797";
> SyntaxException: <ErrorMessage code=2000 [Syntax error in CQL query]
> message="line 1:33 mismatched input
> 'vault-readonly-root-79840dbb-917e-ed90-38e0-578226e6c1c6-1440017797'
> expecting set null (...SELECT ON ALL KEYSPACES TO
> ["vault-readonly-root-79840dbb-917e-ed90-38e0-578226e6c1c6-144001779]...)">
> {quote}
> Singles fail in 2.2.0:
> {quote}
> cassandra@cqlsh> GRANT SELECT ON ALL KEYSPACES TO
> 'vault-readonly-root-e04e7a84-a7ba-d84f-f3c0-1e50e7590179-1440019308';
> SyntaxException: <ErrorMessage code=2000 [Syntax error in CQL query]
> message="line 1:33 no viable alternative at input
> 'vault-readonly-root-e04e7a84-a7ba-d84f-f3c0-1e50e7590179-1440019308'
> (...SELECT ON ALL KEYSPACES TO
> ['vault-readonly-root-e04e7a84-a7ba-d84f-f3c0-1e50e7590179-144001930]...)">
> {quote}
> ... whereas double quotes succeed:
> {code:sql}
> GRANT SELECT ON ALL KEYSPACES TO
> "vault-readonly-root-e04e7a84-a7ba-d84f-f3c0-1e50e7590179-1440019308";
> {code}
> If this is a deliberate change, I don't think it is reflected in the
> documentation. I am temped to consider this a bug introduced with the role
> additions.
> Motivation for this report:
> https://github.com/hashicorp/vault/pull/545#issuecomment-132634630
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