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https://issues.apache.org/jira/browse/CASSANDRA-16977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17418004#comment-17418004
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Sam Tunnicliffe commented on CASSANDRA-16977:
---------------------------------------------
{{DropFunctionStatement}} does accept a function without parens, but this is
really because it's only constructing a {{FunctionName}}, which does not have
parameters. Wherever a {{FunctionResource}} is required, the brackets are used.
IMO, {{fromName}} and {{getName}} ought to be symmetrical, otherwise we're at
risk of running into problems where something is serialized in one format but
read in another. i.e. entries in the permissions tables use {{getName}} and so
always include brackets.
> ArrayIndexOutOfBoundsException in FunctionResource#fromName
> -----------------------------------------------------------
>
> Key: CASSANDRA-16977
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16977
> Project: Cassandra
> Issue Type: Bug
> Components: Feature/Authorization
> Reporter: Berenguer Blasi
> Assignee: Berenguer Blasi
> Priority: Normal
> Fix For: 3.11.x, 4.0.x, 4.x
>
>
> {{FunctionResource}} can't handle functions with 0 args where it throws:
> {noformat}
> 2021-04-08 10:45:40,984 ErrorMessage.java:387 - Unexpected exception during
> request
> java.lang.ArrayIndexOutOfBoundsException: 1
> at
> org.apache.cassandra.auth.FunctionResource.fromName(FunctionResource.java:178)
> {noformat}
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