Maxim Muzafarov created CASSANDRA-21509:
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Summary: Enforcing uniqueness of paramLabel across command options
Key: CASSANDRA-21509
URL: https://issues.apache.org/jira/browse/CASSANDRA-21509
Project: Apache Cassandra
Issue Type: Task
Reporter: Maxim Muzafarov
Assignee: Maxim Muzafarov
On trunk, paramLabel is display-only: duplicate labels cause no parsing or
behavioral problem, only ambiguous help output which some time confuses a
command usage.
The uniqueness rule such as "paramLabels must be unique within a command across
options, aliases, and positionals is a new convention this ticket introduces,
not an existing invariant being violated. Its purpose is forward-looking:
CASSANDRA-19476 (CEP-38) turns these labels into wire keys in a flat. Enforcing
the convention on trunk now means no new commands can introduce collisions.
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