trinodb/trino

Add function to convert strings to title case.

Closed

#2,942 opened on Feb 25, 2020

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 (23 comments) (1 reaction) (1 assignee)Java (2,678 forks)batch import
enhancementgood first issuesyntax-needs-review

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Description

According to the Presto docs, there is not currently a function to convert a string to title case.

Contributor guide

Research direction
Examine existing string functions in the Trino codebase (e.g., lower, upper) to understand the implementation pattern. Implement a title() function that capitalizes the first letter of each word and lowercases the rest, following the Presto documentation for expected behavior. Add tests and ensure Unicode support.
Tech stack
java
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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
Java
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75