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+---
+title: Use tsvector for Full-Text Search
+impact: MEDIUM
+impactDescription: 100x faster than LIKE, with ranking support
+tags: full-text-search, tsvector, gin, search
+---
+
+## Use tsvector for Full-Text Search
+
+LIKE with wildcards can't use indexes. Full-text search with tsvector is orders of magnitude faster.
+
+**Incorrect (LIKE pattern matching):**
+
+```sql
+-- Cannot use index, scans all rows
+select * from articles where content like '%postgresql%';
+
+-- Case-insensitive makes it worse
+select * from articles where lower(content) like '%postgresql%';
+```
+
+**Correct (full-text search with tsvector):**
+
+```sql
+-- Add tsvector column and index
+alter table articles add column search_vector tsvector
+  generated always as (to_tsvector('english', coalesce(title,'') || ' ' || coalesce(content,''))) stored;
+
+create index articles_search_idx on articles using gin (search_vector);
+
+-- Fast full-text search
+select * from articles
+where search_vector @@ to_tsquery('english', 'postgresql & performance');
+
+-- With ranking
+select *, ts_rank(search_vector, query) as rank
+from articles, to_tsquery('english', 'postgresql') query
+where search_vector @@ query
+order by rank desc;
+```
+
+Search multiple terms:
+
+```sql
+-- AND: both terms required
+to_tsquery('postgresql & performance')
+
+-- OR: either term
+to_tsquery('postgresql | mysql')
+
+-- Prefix matching
+to_tsquery('post:*')
+```
+
+Reference: [Full Text Search](https://supabase.com/docs/guides/database/full-text-search)