Question

我在MAC上有一个带有Postgresql（PG_search）的Rails4应用程序。我通过rails migration创建了同义词词典。同义词词典有点工作。设置如下

迁移

CREATE TEXT SEARCH DICTIONARY custom_synonyms_for_keywords ( TEMPLATE = synonym, SYNONYMS = synonyms_for_keywords );
CREATE TEXT SEARCH CONFIGURATION simple_syns_keywords (copy=simple);
ALTER TEXT SEARCH CONFIGURATION simple_syns_keywords ALTER MAPPING FOR asciiword WITH custom_synonyms_for_keywords;

my_synonyms文件：
    fshk bim24os
    冰箱冰箱
    postgres pgsql
    postgresql pgsql
    指数指数*

控制器

class Product < ActiveRecord::Base
   pg_search_scope :pg_search, against: :sku,
         using: {
           tsearch: { prefix: true, dictionary: "simple_syns_keywords" }
         }
end

当我开始

Product.pg_search("fshk") # returns record of "bim24os"
Product.pg_search("fridge") # returns no record of "refrigerator"

但是当我运行它时，它会返回正确的值

SELECT ts_lexize('custom_synonyms_for_keywords', 'fshk');  # returns "bim24os"
SELECT ts_lexize('custom_synonyms_for_keywords', 'fridge');    # returns "refrigerator"

结果

Product.pg_search("fshk")
   Product Load (3.0ms)  SELECT "products".*, ((ts_rank((to_tsvector('simple_syns_keywords', coalesce("products"."sku"::text, ''))), (to_tsquery('simple_syns_keywords', ''' ' || 'fshk' || ' ''' || ':*')), 0))) AS pg_search_rank FROM "products" WHERE (((to_tsvector('simple_syns_keywords', coalesce("products"."sku"::text, ''))) @@ (to_tsquery('simple_syns_keywords', ''' ' || 'fshk' || ' ''' || ':*')))) ORDER BY pg_search_rank DESC, "products"."id" ASC
=> #<ActiveRecord::Relation [#Product id: 1, sku: "BIM24OS"]

Product.pg_search("fridge")
   Product Load (1.8ms)  SELECT "products".*, ((ts_rank((to_tsvector('simple_syns_keywords', coalesce("products"."sku"::text, ''))), (to_tsquery('simple_syns_keywords', ''' ' || 'fridge' || ' ''' || ':*')), 0))) AS pg_search_rank FROM "products" WHERE (((to_tsvector('simple_syns_keywords', coalesce("products"."sku"::text, ''))) @@ (to_tsquery('simple_syns_keywords', ''' ' || 'fridge' || ' ''' || ':*')))) ORDER BY pg_search_rank DESC, "products"."id" ASC
=> ActiveRecord::Relation []

我错过了一步，因为我不确定为什么它不起作用。任何帮助表示赞赏。

由于

Answer 1

通过在我的SQL迁移的第三行添加“simple”来实现它。

发件人

ALTER TEXT SEARCH CONFIGURATION simple_syns_keywords ALTER MAPPING FOR asciiword WITH custom_synonyms_for_keywords;

致

ALTER TEXT SEARCH CONFIGURATION simple_syns_keywords ALTER MAPPING FOR asciiword WITH custom_synonyms_for_keywords, simple;

Rails Postgresql - 同义词词典有点不更新

1 个答案: