[CASSANDRA-18037] Use snake case for the names of CQL native functions

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 5.0-alpha1, 5.0
• Component/s: CQL/Syntax
• Change Category: Semantic
• Complexity: Normal
• Platform: All

Source Control Link

https://github.com/apache/cassandra/commit/d3c55ed8f82c601d188fedbecb62a464171ea624

Test and Documentation Plan

PR	CI
trunk	j8 j11
dtest

• Assignee: Andres de la Peña
• Reporter: Andres de la Peña

Authors

Andres de la Peña

Reviewers

Berenguer Blasi

• Created: 11/Nov/22 14:35
• Updated: 12/Sep/23 13:02
• Resolved: 04/Apr/23 14:14

Description

Most native functions are named all lower case, without underscore nor hyphen to separate words. That's the case, for example, of "intasblob" or "blobasint".

We also have some functions using camel case, as in "castAsInt" or "castAsTimestamp". Note that the came cased names require quoting due to CQL's case insensitivity.

Differently to CQL native functions, system keyspaces, tables and columns consistently use snake case. For example, we have "system_schema", "dropped_columns", "default_time_to_live".

As discussed in this thread, we should adopt snake_case for CQL native function names. Also we should provide aliases for the current function names, so we don't break compatibility.

Issue Links

• links to: GitHub Pull Request #2236