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 (5,739 stars) (1,048 forks)batch import
enhancementgood first issue

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

Tech stack
javasql
Domain
database
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.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
blocked
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
SQL syntaxKSQL codebase structure
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Start by examining the KSQL SQL parser implementation, likely in the `ksql parser` module. Find where other literal types are parsed and add similar logic for hexadecimal literals following MySQL syntax. The issue references MySQL documentation for exact syntax.
Support HEX Literals · confluentinc/ksql#5544 | Good First Issue