Elixir PostgreSQL-选择查询，返回不符合WHERE子句的结果

Question

我具有从数据库中选择商店及其产品的功能：

def create_unique_shop_query_no_keyword(categories, shop_ids) do
    products_shops_categories = from p in Product,
    join: ps in ProductShop, on: p.id == ps.p_id,
    join: s in Shop, on: s.id == ps.s_id,
    join: pc in ProductCategory, on: p.id == pc.p_id,
    join: c in Subcategory, on: c.id == pc.c_id,
    distinct: s.id,
    where: c.id in ^categories,
    where: s.id in ^shop_ids,
    group_by: [s.id, s.name],
    select: %{products: fragment(
      "json_agg( DISTINCT (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)) AS products",
      p.id,
      p.name,
      p.brand,
      p.description,
      p.image,
      p.rating,
      p.number_of_votes,
      ps.not_in_shop_count,
      ps.is_in_shop_count,
      ps.price,
      p.not_vegan_count,
      p.vegan_count),
      shop: fragment(
        "json_agg( DISTINCT (?, ?, ST_X(?), ST_Y(?), ?, ?, ?, ?, ?)) AS shop",
        s.id,
        s.name,
        s.point,
        s.point,
        s.place_id,
        s.street,
        s.suburb,
        s.city,
        s.street_number
        )
      }
  end

我有另一个功能相同的功能，但是将关键字添加到混音中，该关键字检查产品名称或产品品牌中是否包含关键字（不一定是完整的单词：

def create_unique_shop_query(keyword, categories, shop_ids) do
    products_shops_categories = from p in Product,
    join: ps in ProductShop, on: p.id == ps.p_id,
    join: s in Shop, on: s.id == ps.s_id,
    join: pc in ProductCategory, on: p.id == pc.p_id,
    join: c in Subcategory, on: c.id == pc.c_id,
    distinct: s.id,
    where: c.id in ^categories,
    where: s.id in ^shop_ids,
    where: like(p.name, ^("%#{keyword}%")),
    or_where: like(p.brand, ^("%#{keyword}%")),
    group_by: [s.id, s.name],
    select: %{products: fragment(
      "json_agg( DISTINCT (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)) AS products",
      p.id,
      p.name,
      p.brand,
      p.description,
      p.image,
      p.rating,
      p.number_of_votes,
      ps.not_in_shop_count,
      ps.is_in_shop_count,
      ps.price,
      p.not_vegan_count,
      p.vegan_count),
      shop: fragment(
        "json_agg( DISTINCT (?, ?, ST_X(?), ST_Y(?), ?, ?, ?, ?, ?)) AS shop",
        s.id,
        s.name,
        s.point,
        s.point,
        s.place_id,
        s.street,
        s.suburb,
        s.city,
        s.street_number
        )
      }
  end

顶部功能，没有关键字，按预期方式工作。但是在具有关键字的函数中，结果包含商店ID（s.id）不在shop_ids中的商店。为什么会这样？

Answer 1

您有一个or_where，因此您的查询条件本质上是....

(c.id in categories) and (s.id in shop_ids) and (p.name like keyword) or (p.brand like keyword)