Match a phrase ending in a prefix with full text search

Question

I\'m looking for a way to emulate something like SELECT * FROM table WHERE attr LIKE \'%text%\' using a tsvector in PostgreSQL.

I\'ve created a tsvector

Answer 1

There's a way to do it in Postgres using trigrams and Gin/Gist indexes. There's a simple example, but with some rough edges, in this article by Kristo Kaiv: Substring Search.