Support for full text search indexes

Postgres, sqlite, and MySQL all support some form of full-text index. It would be useful to support generating schema for and querying based on these indexes.

This does not seem like a trivial feature, as the implementations are very different for index creation requirements (sqlite appears to be at the table-level, MySQL only supports it on MyISAM tables) and querying.

That said, this issue could at least be used to track interest for such a feature.

References:

• PostgreSQL: http://www.postgresql.org/docs/8.3/static/textsearch.html
• MySQL: https://dev.mysql.com/doc/refman/5.0/en/fulltext-search.html
• sqlite: https://www.sqlite.org/fts3.html

Example index creation and querying:

• PostgreSQL:

CREATE INDEX <INDEX NAME> ON <TABLE NAME> USING gin(to_tsvector(<COLUMN NAME>));

SELECT * FROM <TABLE NAME> WHERE <COLUMN NAME> @@ to_tsquery(<INPUT>);

• MySQL:

CREATE FULLTEXT INDEX <INDEX NAME> ON <TABLE NAME>;

SELECT * FROM <TABLE NAME> WHERE MATCH <COLLUMN NAME> AGAINST <INPUT>;

• sqlite:

CREATE VIRTUAL TABLE <TABLE> USING fts3(<COLUMN NAME> TEXT);

SELECT * FROM <TABLE NAME> WHERE <COLUMN NAME> MATCH <INPUT>;

[elhigu]

removed flood +1 and status update request comments, please use thumbs for voting

EDIT: if there are no new messages in this feed, then there is nothing new to tell

[rapodaca]

This issue was the top hit for many of the searches I did, but didn’t address my question. For those who also end up here for the same reason…

Postgres users can add a full text index to a tsvector column using the third argument to table.index. For example:

exports.up = (knex) => {
  return knex.schema.createTable('foo', (table) => {
    table.increments('id');
    table.specificType('fulltext', 'tsvector');

    table.index('fulltext', null, 'gin');
  );
);

Also see:

https://knexjs.org/#Schema-index

and

https://stackoverflow.com/questions/45871474/how-to-add-gin-index-using-knex-js