pg_search

pig ext install pg_search

./pgsql.yml -t pg_extension -e '{"pg_extensions": ["pg_search"]}' # -l <cls>

dnf install pg_search_17;
dnf install pg_search_16;
dnf install pg_search_15;
dnf install pg_search_14;

apt install postgresql-17-pg-search;
apt install postgresql-16-pg-search;
apt install postgresql-15-pg-search;
apt install postgresql-14-pg-search;

CREATE EXTENSION pg_search;

CREATE EXTENSION pg_search;

ALTER SYSTEM SET paradedb.pg_search_telemetry TO 'off';

CALL paradedb.create_bm25_test_table(
  schema_name => 'public',
  table_name => 'mock_items'
);
    
SELECT description, rating, category FROM mock_items LIMIT 3;

CALL paradedb.create_bm25(
        index_name => 'search_idx',
        schema_name => 'public',
        table_name => 'mock_items',
        key_field => 'id',
        text_fields => paradedb.field('description', tokenizer => paradedb.tokenizer('en_stem')) ||
                       paradedb.field('category'),
        numeric_fields => paradedb.field('rating')
     );

SELECT description, rating, category
FROM search_idx.search('(description:keyboard OR category:electronics) AND rating:>2',limit_rows => 5);

CALL paradedb.create_bm25(
        index_name => 'ngrams_idx',
        schema_name => 'public',
        table_name => 'mock_items',
        key_field => 'id',
        text_fields => paradedb.field('description', tokenizer => paradedb.tokenizer('ngram', min_gram => 4, max_gram => 4, prefix_only => false)) ||
                       paradedb.field('category')
     );

SELECT description, rating, category
FROM ngrams_idx.search('description:blue');