confluentinc/ksql

Support HEX Literals

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#5,544 opened on Jun 3, 2020

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 (0 comments) (0 reactions) (1 assignee)Java (1,048 forks)batch import
enhancementgood first issue

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Description

See: https://dev.mysql.com/doc/refman/8.0/en/hexadecimal-literals.html

We should support specifying HEX literals through the common syntax 0xFF or X'FF'

Contributor guide

Research direction
Examine how existing literals (e.g., strings, numbers) are parsed in the KSQL codebase, then add support for hex literals (0xFF, X'FF') in the lexer/parser following MySQL syntax. Look for test cases for existing literals to model tests for hex literals.
Tech stack
java
Domain
backenddatabase
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaSQL parsing
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60