Fuzzy Text Search in PostgreSQL: How Trigrams Make Computers "Almost Right"
The article discusses the concept of fuzzy text search in PostgreSQL, focusing on the use of trigrams. Trigrams are groups of three consecutive characters that help computers understand and match similar words despite minor typos. This method improves search accuracy by allowing for a more human-like understanding of text input.
- ▪Fuzzy search teaches computers to find close matches rather than exact ones.
- ▪Trigrams are groups of three consecutive characters from a word, which help in measuring similarity between words.
- ▪PostgreSQL uses trigrams to calculate similarity based on shared trigrams between two words.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3397109) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Dhananjay Haridas Posted on Jun 3 Fuzzy Text Search in PostgreSQL: How Trigrams Make Computers "Almost Right" A deep dive into one of the most clever tricks in database engineering - explained so simply, your grandmother could follow along. The Problem: Computers Are Too Exact Imagine you're searching for a restaurant called "Maharaja Palace" on an app. You type "Maharja Palce" - two small typos. A traditional search engine looks at your input and says: "No results found." Zero.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
Discussion
0 commentsMore from DEV.to (Top)
