This is a document for PGroonga 1.X. See PGroonga 2.x document when you're using recent PGroonga.

&@| operator

Since 1.2.1.

Summary

&@> operator is deprecated since 1.2.1. Use &@| operator instead.

&@| operator performs full text search by array of keywords. If one or more keywords are found, the record is matched.

Syntax

column &@| keywords

column is a column to be searched. It's text type, text[] type or varchar type.

keywords is an array of keywords for full text search. It's text[] type for text type or text[] type column. It's varchar[] for varchar type column.

The operator returns true when one or more keyword in keywords are included in column.

Operator classes

You need to specify one of the following operator classes to use this operator:

Usage

Here are sample schema and data for examples:

CREATE TABLE memos (
  id integer,
  content text
);

CREATE INDEX pgroonga_content_index ON memos
  USING pgroonga (content pgroonga.text_full_text_search_ops_v2);

INSERT INTO memos VALUES (1, 'PostgreSQL is a relational database management system.');
INSERT INTO memos VALUES (2, 'Groonga is a fast full text search engine that supports all languages.');
INSERT INTO memos VALUES (3, 'PGroonga is a PostgreSQL extension that uses Groonga as index.');
INSERT INTO memos VALUES (4, 'There is groonga command.');

You can perform full text search with keywords by &@| operator:

SELECT * FROM memos WHERE content &@| ARRAY['engine', 'database'];
--  id |                                content                                 
-- ----+------------------------------------------------------------------------
--   1 | PostgreSQL is a relational database management system.
--   2 | Groonga is a fast full text search engine that supports all languages.
-- (2 rows)

column &@| ARRAY['KEYWORD1', 'KEYWORD2'] equals to column &@~ 'KEYWORD1 OR KEYWORD2'.

See also