如何使用多个连接表加速MYSQL查询

Question

我的查询出现问题，他们需要很长时间才能获得产品结果。我只在主表中有13,000条记录，然后链接到其他一些表，这些表主要是属性表，里面有十几条记录

我之前使用过索引，但只在一个表上使用查询而不在其他地方加入。

这是我的查询

SELECT
    product_data.id                         AS id,
    product_data.sku                        AS sku,
    product_data.barcode                    AS barcode,
    product_data.title                      AS title,
    product_data.attrib_releasedate         AS attrib_releasedate,
    product_category_main.id                AS category_main_id,
    product_category_main.name              AS category_main_description,
    product_category_sub.id                 AS category_sub_id,
    product_category_sub.name               AS category_sub_description,
    product_category_sub.description_short  AS category_sub_description_short,
    product_condition.id                    AS condition_id,
    product_condition.name                  AS condition_description,       
    attrib_pegi.name                        AS attrib_pegi,
    attrib_region.name                      AS attrib_region,
    product_data.asin                       AS asin,
    product_data.cex                        AS cex

FROM product_data
    INNER JOIN product_category_main 
        ON product_data.category_main_id = product_category_main.id

    INNER JOIN product_category_sub 
        ON product_data.category_sub_id = product_category_sub.id

    LEFT JOIN product_condition 
        ON product_data.condition_id = product_condition.id

    LEFT JOIN attrib_pegi
        ON attrib_pegi.id = product_data.attrib_pegi

    LEFT JOIN attrib_region
        ON attrib_region.id = product_data.attrib_region

WHERE
    title<>'' AND product_category_main.id = 1

ORDER BY
    category_main_id, title